{"id":389,"date":"2024-08-19T10:00:26","date_gmt":"2024-08-19T10:00:26","guid":{"rendered":"https:\/\/pixelsconverter.online\/?page_id=389"},"modified":"2025-10-26T06:35:39","modified_gmt":"2025-10-26T06:35:39","slug":"vh-to-rem-converter","status":"publish","type":"page","link":"https:\/\/toolsmate.online\/vi\/vh-to-rem-converter\/","title":{"rendered":"B\u1ed9 chuy\u1ec3n \u0111\u1ed5i VH sang REM"},"content":{"rendered":"<style>.kb-row-layout-id389_7ee1d3-3e > .kt-row-column-wrap{align-content:start;}:where(.kb-row-layout-id389_7ee1d3-3e > .kt-row-column-wrap) > .wp-block-kadence-column{justify-content:start;}.kb-row-layout-id389_7ee1d3-3e > .kt-row-column-wrap{column-gap:var(--global-kb-gap-md, 2rem);row-gap:var(--global-kb-gap-md, 2rem);max-width:var( --global-content-width, 1100px );padding-left:var(--global-content-edge-padding);padding-right:var(--global-content-edge-padding);padding-top:var(--global-kb-spacing-sm, 1.5rem);padding-bottom:var(--global-kb-spacing-sm, 1.5rem);grid-template-columns:minmax(0, 1fr);}.kb-row-layout-id389_7ee1d3-3e > .kt-row-layout-overlay{opacity:0.30;}@media all and (max-width: 1024px){.kb-row-layout-id389_7ee1d3-3e > .kt-row-column-wrap{grid-template-columns:minmax(0, 1fr);}}@media all and (max-width: 767px){.kb-row-layout-id389_7ee1d3-3e > .kt-row-column-wrap{grid-template-columns:minmax(0, 1fr);}}<\/style><div class=\"kb-row-layout-wrap kb-row-layout-id389_7ee1d3-3e alignnone wp-block-kadence-rowlayout\"><div class=\"kt-row-column-wrap kt-has-1-columns kt-row-layout-equal kt-tab-layout-inherit kt-mobile-layout-row kt-row-valign-top kb-theme-content-width\">\n<style>.kadence-column389_be355c-97 > .kt-inside-inner-col,.kadence-column389_be355c-97 > .kt-inside-inner-col:before{border-top-left-radius:0px;border-top-right-radius:0px;border-bottom-right-radius:0px;border-bottom-left-radius:0px;}.kadence-column389_be355c-97 > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column389_be355c-97 > .kt-inside-inner-col{flex-direction:column;}.kadence-column389_be355c-97 > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column389_be355c-97 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column389_be355c-97{position:relative;}@media all and (max-width: 1024px){.kadence-column389_be355c-97 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column389_be355c-97 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column389_be355c-97\"><div class=\"kt-inside-inner-col\">\n<h1 class=\"wp-block-heading has-theme-palette-9-color has-text-color has-link-color wp-elements-a8e2bead0bb1748a309013eb7836afe1\">B\u1ed8 CHUY\u1ec2N \u0110\u1ed4I VH SANG REM<\/h1>\n<\/div><\/div>\n\n\n<style>.kadence-column389_6dc2ef-49 > .kt-inside-inner-col,.kadence-column389_6dc2ef-49 > .kt-inside-inner-col:before{border-top-left-radius:0px;border-top-right-radius:0px;border-bottom-right-radius:0px;border-bottom-left-radius:0px;}.kadence-column389_6dc2ef-49 > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column389_6dc2ef-49 > .kt-inside-inner-col{flex-direction:column;}.kadence-column389_6dc2ef-49 > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column389_6dc2ef-49 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column389_6dc2ef-49{position:relative;}@media all and (max-width: 1024px){.kadence-column389_6dc2ef-49 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column389_6dc2ef-49 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column389_6dc2ef-49\"><div class=\"kt-inside-inner-col\">\n<div class=\"container\">\n    <div class=\"input-group\">\n        <input type=\"number\" id=\"viewportHeightInput\" placeholder=\"Nh\u1eadp Chi\u1ec1u cao Viewport\" value=\"1000\">\n        <label for=\"viewportHeightInput\">Chi\u1ec1u cao c\u1ee7a Viewport<\/label>\n    <\/div>\n    <!-- Icon for page change -->\n    <span id=\"pageChangeIcon\" class=\"rotate-icon\">\n        <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"24\" height=\"24\" viewbox=\"0 0 52 52\" fill=\"#000000\" class=\"CalculatorField_calculator-field__reverse-icon__vb2AT\">\n            <g>\n                <path d=\"M48.5,2h-3C44.7,2,44,2.7,44,3.5v7c0,0.9-1,1.5-1.6,0.8l0,0C37.7,6.1,31,3.4,23.7,4.1 c-2.6,0.2-5.1,1-7.4,2.2c-1.2,0.6-2.4,1.3-3.4,2.1c-0.7,0.5-0.8,1.6-0.2,2.3l2.1,2.1c0.5,0.5,1.3,0.6,1.9,0.2 c1.2-0.8,2.5-1.5,3.9-2.1c0.6-0.2,1.3-0.4,2-0.6c6.3-1.2,12.3,1.3,15.7,5.4c1.2,1.4,0.3,2.3-0.7,2.3h-7c-0.8,0-1.6,0.7-1.6,1.5v3 c0,0.8,0.8,1.5,1.6,1.5h18.2c0.7,0,1.2-0.6,1.2-1.3V3.5C50,2.7,49.3,2,48.5,2z\"><\/path>\n                <path d=\"M39.4,37.4c-0.6-0.6-1.5-0.6-2.1,0c-1.6,1.6-3.6,2.9-5.8,3.7c-0.6,0.2-1.3,0.4-2,0.6 c-6.3,1.2-12.3-1.3-15.7-5.4c-1.2-1.4-0.3-2.3,0.7-2.3h7c0.8,0,1.5-0.7,1.5-1.5v-3c0-0.8-0.7-1.5-1.5-1.5H3.3C2.6,28,2,28.6,2,29.3 v19.2C2,49.3,2.7,50,3.5,50h3C7.3,50,8,49.3,8,48.5v-7c0-0.9,1-1.5,1.6-0.8l0,0c4.6,5.2,11.4,7.9,18.7,7.2c2.6-0.2,5.1-1,7.4-2.2 c2.2-1.1,4.1-2.5,5.7-4.1c0.6-0.6,0.6-1.6,0-2.1L39.4,37.4z\"><\/path>\n            <\/g>\n        <\/svg>\n    <\/span>\n    <div class=\"input-group\">\n        <input type=\"number\" id=\"vhUnitInput\" placeholder=\"Nh\u1eadp \u0111\u01a1n v\u1ecb VH\" value=\"250\">\n        <label for=\"vhUnitInput\">\u0110\u01a1n v\u1ecb VH<\/label>\n    <\/div>\n    <div class=\"input-group\">\n        <input type=\"number\" id=\"remSizeInput\" placeholder=\"Nh\u1eadp K\u00edch th\u01b0\u1edbc REM\" value=\"16\">\n        <label for=\"remSizeInput\">K\u00edch th\u01b0\u1edbc REM<\/label>\n    <\/div>\n    <div class=\"result\" id=\"resultDisplay\">K\u1ebft qu\u1ea3 s\u1ebd \u0111\u01b0\u1ee3c hi\u1ec3n th\u1ecb \u1edf \u0111\u00e2y<\/div>\n<\/div>\n\n\n<script>\n    const viewportHeightInput = document.getElementById('viewportHeightInput');\n    const vhUnitInput = document.getElementById('vhUnitInput');\n    const remSizeInput = document.getElementById('remSizeInput');\n    const resultDisplay = document.getElementById('resultDisplay');\n    const copyIcon = document.createElement('span');\n\n    \/\/ Function to convert VH to REM\n    function convertVHToREM() {\n        const viewportHeight = parseFloat(viewportHeightInput.value);\n        const vhUnit = parseFloat(vhUnitInput.value);\n        const remSize = parseFloat(remSizeInput.value);\n\n        if (!isNaN(viewportHeight) && !isNaN(vhUnit) && !isNaN(remSize)) {\n            const pxValue = (viewportHeight * vhUnit) \/ 100;\n            const remValue = pxValue \/ remSize;\n\n            \/\/ Display result, rounded if necessary\n            const displayValue = remValue % 1 === 0 ? remValue : remValue.toFixed(2);\n            resultDisplay.textContent = displayValue + ' rem';\n        } else {\n            resultDisplay.textContent = 'Result will be shown here';\n        }\n        resultDisplay.appendChild(copyIcon);\n    }\n\n    \/\/ Add event listeners to input fields\n    viewportHeightInput.addEventListener('input', convertVHToREM);\n    vhUnitInput.addEventListener('input', convertVHToREM);\n    remSizeInput.addEventListener('input', convertVHToREM);\n\n    \/\/ Set initial conversion on page load with default values\n    convertVHToREM();\n\n    copyIcon.innerHTML = `<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" height=\"24\" viewBox=\"0 0 24 24\" width=\"24\">\n      <path d=\"M16 1H4c-1.1 0-2 .9-2 2v14h2V3h12V1zm3 4H8c-1.1 0-2 .9-2 2v14c0 1.1.9 2 2 2h11c1.1 0 2-.9 2-2V7c0-1.1-.9-2-2-2zm0 16H8V7h11v14z\"\/>\n    <\/svg>`;\n    copyIcon.style.cursor = 'pointer';\n    copyIcon.style.marginLeft = '10px';\n    copyIcon.style.verticalAlign = 'middle';\n    copyIcon.style.transition = 'transform 0.3s ease';\n\n    \/\/ Copy to clipboard functionality\n    copyIcon.addEventListener('click', function() {\n        const remValue = resultDisplay.textContent;\n        if (remValue && remValue !== 'Result will be shown here') {\n            const valueToCopy = remValue.replace('rem', '').trim();\n            navigator.clipboard.writeText(valueToCopy).then(() => {\n                copyIcon.style.transform = 'scale(1.2)';\n                setTimeout(() => {\n                    copyIcon.style.transform = 'scale(1)';\n                }, 200);\n            }).catch(err => {\n                console.error('Failed to copy text:', err);\n            });\n        }\n    });\n    copyIcon.classList.add('copy-icon');\n    \/\/ Add event listener for icon click to change the page\ndocument.getElementById('pageChangeIcon').addEventListener('click', function() {\n    \/\/ Change the URL to the desired page\n    window.location.href = 'https:\/\/toolsmate.online\/rem-to-vh-converter\/'; \/\/ Replace with the desired page link\n});\n\n<\/script>\n<\/div><\/div>\n\n\n<style>.kadence-column389_c50d9f-04 > .kt-inside-inner-col,.kadence-column389_c50d9f-04 > .kt-inside-inner-col:before{border-top-left-radius:0px;border-top-right-radius:0px;border-bottom-right-radius:0px;border-bottom-left-radius:0px;}.kadence-column389_c50d9f-04 > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column389_c50d9f-04 > .kt-inside-inner-col{flex-direction:column;}.kadence-column389_c50d9f-04 > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column389_c50d9f-04 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column389_c50d9f-04, .kadence-column389_c50d9f-04 h1, .kadence-column389_c50d9f-04 h2, .kadence-column389_c50d9f-04 h3, .kadence-column389_c50d9f-04 h4, .kadence-column389_c50d9f-04 h5, .kadence-column389_c50d9f-04 h6{color:var(--global-palette9, #ffffff);}.kadence-column389_c50d9f-04 a{color:var(--global-palette7, #EDF2F7);}.kadence-column389_c50d9f-04{position:relative;}@media all and (max-width: 1024px){.kadence-column389_c50d9f-04 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column389_c50d9f-04 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column389_c50d9f-04\"><div class=\"kt-inside-inner-col\">\n<h2 class=\"wp-block-heading\">B\u1ed9 chuy\u1ec3n \u0111\u1ed5i VH sang REM B\u1ed9 chuy\u1ec3n \u0111\u1ed5i REM Chi\u1ec1u cao khung nh\u00ecn sang \u0110\u01a1n v\u1ecb REM.<\/h2>\n\n\n\n<p>Vi\u1ec7c ph\u00e1t tri\u1ec3n c\u00e1c trang web \u0111\u00e1p \u1ee9ng \u0111\u00f2i h\u1ecfi t\u00ednh linh ho\u1ea1t cao. V\u00ec m\u00e0n h\u00ecnh hi\u1ec7n nay c\u00f3 th\u1ec3 c\u00f3 k\u00edch th\u01b0\u1edbc v\u00f4 h\u1ea1n, c\u00e1c \u0111\u01a1n v\u1ecb flex \u0111\u01b0\u1ee3c c\u00e1c nh\u00e0 thi\u1ebft k\u1ebf web s\u1eed d\u1ee5ng nh\u01b0 VH (Chi\u1ec1u cao khung nh\u00ecn) v\u00e0 REM (G\u1ed1c EM) \u0111\u1ec3 mang l\u1ea1i s\u1ef1 linh ho\u1ea1t v\u00e0 nh\u1ea5t qu\u00e1n trong b\u1ed1 c\u1ee5c. Tuy nhi\u00ean, vi\u1ec7c chuy\u1ec3n \u0111\u1ed5i gi\u1eefa hai \u0111\u01a1n v\u1ecb n\u00e0y c\u00f3 th\u1ec3 b\u1ea5t ti\u1ec7n \u2013 v\u00e0 \u0111\u00f3 ch\u00ednh l\u00e0 l\u00fac B\u1ed9 chuy\u1ec3n \u0111\u1ed5i VH sang REM c\u1ee7a ch\u00fang t\u00f4i s\u1ebd ph\u00e1t huy t\u00e1c d\u1ee5ng.<\/p>\n\n\n\n<p>M\u1ed9t m\u00e1y t\u00ednh d\u1ec5 s\u1eed d\u1ee5ng tr\u00ean n\u1ec1n t\u1ea3ng web s\u1ebd ngay l\u1eadp t\u1ee9c chuy\u1ec3n \u0111\u1ed5i ph\u00e9p \u0111o chi\u1ec1u cao khung nh\u00ecn (VH) th\u00e0nh ph\u00e9p \u0111o em g\u1ed1c (REM), d\u1ec5 d\u00e0ng \u00e1p d\u1ee5ng trong vi\u1ec7c ph\u00e1t tri\u1ec3n c\u00e1c thi\u1ebft k\u1ebf web c\u00f3 kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng, d\u1ec5 truy c\u1eadp v\u00e0 th\u00e2n thi\u1ec7n v\u1edbi ng\u01b0\u1eddi d\u00f9ng.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">B\u1ed9 chuy\u1ec3n \u0111\u1ed5i VH sang REM l\u00e0 g\u00ec?<\/h2>\n\n\n\n<p>B\u1ed9 chuy\u1ec3n \u0111\u1ed5i VH sang REM gi\u00fap c\u00e1c nh\u00e0 thi\u1ebft k\u1ebf v\u00e0 nh\u00e0 ph\u00e1t tri\u1ec3n nhanh ch\u00f3ng chuy\u1ec3n \u0111\u1ed5i c\u00e1c gi\u00e1 tr\u1ecb chi\u1ec1u cao c\u1ee7a khung nh\u00ecn th\u00e0nh c\u00e1c gi\u00e1 tr\u1ecb c\u1ee7a k\u00edch th\u01b0\u1edbc ph\u00f4ng ch\u1eef g\u1ed1c.<\/p>\n\n\n\n<p>VH \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng \u0111\u1ec3 cung c\u1ea5p k\u00edch th\u01b0\u1edbc c\u1ee7a m\u1ed9t ph\u1ea7n t\u1eed t\u00f9y thu\u1ed9c v\u00e0o chi\u1ec1u cao hi\u1ec3n th\u1ecb c\u1ee7a tr\u00ecnh duy\u1ec7t trong thi\u1ebft k\u1ebf web \u0111\u00e1p \u1ee9ng v\u00e0 REM \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng \u0111\u1ec3 cung c\u1ea5p k\u00edch th\u01b0\u1edbc t\u00f9y thu\u1ed9c v\u00e0o k\u00edch th\u01b0\u1edbc ph\u00f4ng ch\u1eef c\u01a1 b\u1ea3n \u0111\u01b0\u1ee3c \u0111\u1eb7t trong ph\u1ea7n t\u1eed g\u1ed1c HTML.<\/p>\n\n\n\n<p>B\u1eb1ng c\u00e1ch t\u1ea1o ra VH REM, vi\u1ec7c \u0111i\u1ec1u ch\u1ec9nh b\u1ed1 c\u1ee5c \u0111\u1ec3 h\u1ed7 tr\u1ee3 linh ho\u1ea1t k\u00edch th\u01b0\u1edbc m\u00e0n h\u00ecnh c\u0169ng nh\u01b0 s\u1edf th\u00edch ph\u00f4ng ch\u1eef c\u1ee7a ng\u01b0\u1eddi d\u00f9ng s\u1ebd tr\u1edf n\u00ean kh\u1ea3 thi, do \u0111\u00f3 c\u00f3 th\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c b\u1ed1 c\u1ee5c d\u1ec5 \u0111\u1ecdc v\u00e0 c\u00e2n b\u1eb1ng v\u1ec1 m\u1eb7t th\u1ea9m m\u1ef9.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">T\u00ecm hi\u1ec3u v\u1ec1 \u0111\u01a1n v\u1ecb VH v\u00e0 REM.<\/h2>\n\n\n\n<p>\u0110\u1ebfn th\u1eddi \u0111i\u1ec3m n\u00e0y, \u0111\u00e3 \u0111\u1ebfn l\u00fac xem x\u00e9t \u00fd ngh\u0129a c\u1ee7a t\u1eebng \u0111\u01a1n v\u1ecb:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">1. Chi\u1ec1u cao khung nh\u00ecn (VH)<\/h3>\n\n\n\n<p>1 VH = 1 ph\u1ea7n tr\u0103m chi\u1ec1u cao c\u1ee7a c\u1eeda s\u1ed5 xem c\u1ee7a tr\u00ecnh duy\u1ec7t.<\/p>\n\n\n\n<p>V\u00ed d\u1ee5, 1 VH s\u1ebd t\u01b0\u01a1ng \u1ee9ng v\u1edbi 9 pixel trong tr\u01b0\u1eddng h\u1ee3p chi\u1ec1u cao khung nh\u00ecn l\u00e0 900 pixel.<\/p>\n\n\n\n<p>VH t\u1ef1 \u0111\u1ed9ng thay \u0111\u1ed5i khi k\u00edch th\u01b0\u1edbc c\u1eeda s\u1ed5 tr\u00ecnh duy\u1ec7t thay \u0111\u1ed5i.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">2. G\u1ed1c EM (REM)<\/h3>\n\n\n\n<p>1 REM = k\u00edch th\u01b0\u1edbc ph\u00f4ng ch\u1eef c\u1ee7a ph\u1ea7n t\u1eed g\u1ed1c trong html.<\/p>\n\n\n\n<p>CSS cho ph\u00e9p thay \u0111\u1ed5i k\u00edch th\u01b0\u1edbc ph\u00f4ng ch\u1eef g\u1ed1c m\u1eb7c \u0111\u1ecbnh th\u00e0nh 16px, nh\u01b0ng c\u00f3 th\u1ec3 thay \u0111\u1ed5i \u0111\u01b0\u1ee3c tr\u00ean h\u1ea7u h\u1ebft c\u00e1c tr\u00ecnh duy\u1ec7t.<\/p>\n\n\n\n<p>C\u00e1c \u0111\u01a1n v\u1ecb REM l\u00e0m cho trang web c\u1ee7a b\u1ea1n \u0111\u1ed3ng nh\u1ea5t v\u00ec ch\u00fang \u0111\u01b0\u1ee3c chia t\u1ef7 l\u1ec7 theo k\u00edch th\u01b0\u1edbc c\u1ee7a ph\u1ea7n t\u1eed g\u1ed1c ch\u1ee9 kh\u00f4ng ph\u1ea3i ph\u1ea7n t\u1eed cha.<\/p>\n\n\n\n<p>H\u1ec7 qu\u1ea3 kh\u00e1c c\u1ee7a REM l\u00e0 thi\u1ebft k\u1ebf c\u00f3 th\u1ec3 d\u1ef1 \u0111o\u00e1n \u0111\u01b0\u1ee3c h\u01a1n v\u00e0 qu\u00e1 tr\u00ecnh b\u1ea3o tr\u00ec \u0111\u01a1n gi\u1ea3n h\u01a1n nhi\u1ec1u, \u0111\u1eb7c bi\u1ec7t l\u00e0 khi li\u00ean quan \u0111\u1ebfn kh\u1ea3 n\u0103ng truy c\u1eadp ho\u1eb7c ki\u1ec3m so\u00e1t k\u00edch th\u01b0\u1edbc ph\u00f4ng ch\u1eef.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">C\u00f4ng th\u1ee9c chuy\u1ec3n \u0111\u1ed5i VH sang REM<\/h2>\n\n\n\n<p>Vi\u1ec7c chuy\u1ec3n \u0111\u1ed5i t\u1eeb VH sang REM kh\u00f4ng qu\u00e1 kh\u00f3, ch\u1ec9 c\u1ea7n bi\u1ebft s\u1ed1 l\u01b0\u1ee3ng pixel trong khung nh\u00ecn v\u00e0 k\u00edch th\u01b0\u1edbc ph\u00f4ng ch\u1eef g\u1ed1c.<\/p>\n\n\n\n<p><strong>\u0110\u00e2y l\u00e0 c\u00f4ng th\u1ee9c:<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code has-theme-palette-2-background-color has-background\"><code>REM = (Chi\u1ec1u cao khung nh\u00ecn t\u00ednh b\u1eb1ng Pixel x Gi\u00e1 tr\u1ecb VH)\/100)\/K\u00edch th\u01b0\u1edbc ph\u00f4ng ch\u1eef g\u1ed1c t\u00ednh b\u1eb1ng Pixel.<\/code><\/pre>\n\n\n\n<p><strong>Ph\u00e2n t\u00edch t\u1eebng b\u01b0\u1edbc:<\/strong><\/p>\n\n\n\n<p>X\u00e1c \u0111\u1ecbnh chi\u1ec1u cao c\u1ee7a khung nh\u00ecn t\u00ednh b\u1eb1ng pixel (v\u00ed d\u1ee5: window.innerHeight trong JavaScript).<\/p>\n\n\n\n<p>Nh\u00e2n chi\u1ec1u cao v\u1edbi gi\u00e1 tr\u1ecb VH c\u1ee7a b\u1ea1n r\u1ed3i chia cho 100 \u0111\u1ec3 c\u00f3 gi\u00e1 tr\u1ecb pixel.<\/p>\n\n\n\n<p>L\u1ea5y gi\u00e1 tr\u1ecb c\u1ee7a pixel \u0111\u00f3 chia cho k\u00edch th\u01b0\u1edbc ph\u00f4ng ch\u1eef g\u1ed1c c\u1ee7a b\u1ea1n l\u00e0m gi\u00e1 tr\u1ecb t\u00ednh b\u1eb1ng Rems.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">V\u00ed d\u1ee5 chuy\u1ec3n \u0111\u1ed5i<\/h2>\n\n\n\n<p><strong>Ch\u00fang ta h\u00e3y n\u00f3i:<\/strong><\/p>\n\n\n\n<p>Chi\u1ec1u cao khung nh\u00ecn = 800px<\/p>\n\n\n\n<p>K\u00edch th\u01b0\u1edbc ph\u00f4ng ch\u1eef g\u1ed1c = 16px<\/p>\n\n\n\n<p>B\u1ea1n mu\u1ed1n chuy\u1ec3n \u0111\u1ed5i 10 VH sang REM<\/p>\n\n\n\n<p><strong>B\u01b0\u1edbc 1:<\/strong> 10 VH = 10% c\u1ee7a 800px = 80px<\/p>\n\n\n\n<p><strong>B\u01b0\u1edbc 2: <\/strong>80px \u00f7 16px = 5 REM<\/p>\n\n\n\n<p><strong>K\u1ebft qu\u1ea3:<\/strong> 10 VH = 5 REM<\/p>\n\n\n\n<p>Sau \u0111\u00f3, b\u1ea1n s\u1ebd c\u00f3 m\u1ed9t v\u00f9ng ch\u1ee9a 10 VH, t\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u1edbi 5 REM v\u1edbi khung nh\u00ecn 800 pixel v\u00e0 ph\u00f4ng ch\u1eef g\u1ed1c 16 pixel.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Chuy\u1ec3n \u0111\u1ed5i t\u1eeb VH sang REM Converter.<\/h2>\n\n\n\n<p>\u0110\u1ec3 chuy\u1ec3n VH sang REM theo th\u1eddi gian th\u1ef1c b\u1eb1ng d\u1ecbch v\u1ee5 tr\u1ef1c tuy\u1ebfn c\u1ee7a ch\u00fang t\u00f4i, ch\u1ec9 c\u1ea7n l\u00e0m theo m\u1ed9t s\u1ed1 b\u01b0\u1edbc d\u01b0\u1edbi \u0111\u00e2y:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">B\u01b0\u1edbc 1: Nh\u1eadp Gi\u00e1 tr\u1ecb VH<\/h3>\n\n\n\n<p>Nh\u1eadp s\u1ed1 l\u01b0\u1ee3ng \u0111\u01a1n v\u1ecb VH m\u00e0 b\u1ea1n mu\u1ed1n chuy\u1ec3n \u0111\u1ed5i, v\u00ed d\u1ee5: 10.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">B\u01b0\u1edbc 2: Nh\u1eadp Chi\u1ec1u cao khung nh\u00ecn (T\u00f9y ch\u1ecdn)<\/h3>\n\n\n\n<p>B\u1ea1n c\u0169ng c\u00f3 th\u1ec3 th\u00eam khung nh\u00ecn hi\u1ec7n t\u1ea1i c\u1ee7a m\u00ecnh theo pixel trong tr\u01b0\u1eddng h\u1ee3p n\u00e0y \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c k\u1ebft qu\u1ea3 ch\u00ednh x\u00e1c.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">B\u01b0\u1edbc 3: \u0110\u1eb7t k\u00edch th\u01b0\u1edbc ph\u00f4ng ch\u1eef g\u1ed1c<\/h3>\n\n\n\n<p>K\u00edch th\u01b0\u1edbc ph\u00f4ng ch\u1eef m\u1eb7c \u0111\u1ecbnh l\u00e0 16px, tuy nhi\u00ean khi b\u1ea1n mu\u1ed1n c\u00f3 ph\u00f4ng ch\u1eef c\u01a1 b\u1ea3n theo s\u1edf th\u00edch c\u1ee7a ri\u00eang m\u00ecnh (18px ho\u1eb7c 20px) th\u00ec ch\u1ec9 c\u1ea7n nh\u1eadp s\u1ed1 \u0111\u00f3.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">B\u01b0\u1edbc 4: Nh\u1eadn chuy\u1ec3n \u0111\u1ed5i t\u1ee9c th\u00ec<\/h3>\n\n\n\n<p>Nh\u1ea5p v\u00e0o chuy\u1ec3n \u0111\u1ed5i ho\u1eb7c nh\u1ea5n Enter. Gi\u00e1 tr\u1ecb t\u01b0\u01a1ng \u0111\u01b0\u01a1ng c\u1ee7a REM s\u1ebd t\u1ef1 \u0111\u1ed9ng \u0111\u01b0\u1ee3c hi\u1ec3n th\u1ecb b\u1eb1ng c\u00f4ng c\u1ee5.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">B\u01b0\u1edbc 5: \u00c1p d\u1ee5ng cho CSS c\u1ee7a b\u1ea1n<\/h3>\n\n\n\n<p>Nh\u1eadp gi\u00e1 tr\u1ecb c\u1ee7a REM v\u00e0o m\u00e3 ho\u1eb7c b\u1ea3ng \u0111\u1ecbnh ki\u1ec3u c\u1ee7a b\u1ea1n.<\/p>\n\n\n\n<p>V\u1eady l\u00e0 xong! V\u1eeba r\u1ed3i b\u1ea1n \u0111\u00e3 t\u1ef1 \u0111\u1ed9ng chuy\u1ec3n VH th\u00e0nh REM.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">B\u1ea3ng chuy\u1ec3n \u0111\u1ed5i VH sang REM<\/h2>\n\n\n\n<p>B\u1ea3ng d\u01b0\u1edbi \u0111\u00e2y cung c\u1ea5p m\u1ed9t t\u00e0i li\u1ec7u tham kh\u1ea3o nhanh cho ph\u1ed5 bi\u1ebfn <strong>Chuy\u1ec3n \u0111\u1ed5i VH sang REM<\/strong>, gi\u1ea3 s\u1eed m\u1ed9t m\u1eb7c \u0111\u1ecbnh <strong>chi\u1ec1u cao khung nh\u00ecn l\u00e0 1000px<\/strong> v\u00e0 m\u1ed9t <strong>k\u00edch th\u01b0\u1edbc ph\u00f4ng ch\u1eef g\u1ed1c l\u00e0 16px<\/strong>.<\/p>\n<\/div><\/div>\n\n\n<style>.kadence-column389_1b8aea-f2 > .kt-inside-inner-col,.kadence-column389_1b8aea-f2 > .kt-inside-inner-col:before{border-top-left-radius:0px;border-top-right-radius:0px;border-bottom-right-radius:0px;border-bottom-left-radius:0px;}.kadence-column389_1b8aea-f2 > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column389_1b8aea-f2 > .kt-inside-inner-col{flex-direction:column;}.kadence-column389_1b8aea-f2 > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column389_1b8aea-f2 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column389_1b8aea-f2{position:relative;}@media all and (max-width: 1024px){.kadence-column389_1b8aea-f2 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column389_1b8aea-f2 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column389_1b8aea-f2\"><div class=\"kt-inside-inner-col\">\n<table border=\"1\" cellpadding=\"10\" cellspacing=\"0\">\n    <thead>\n        <tr>\n            <th>Chi\u1ec1u cao c\u1ee7a Viewport<\/th>\n            <th>\u0110\u01a1n v\u1ecb VH<\/th>\n            <th>K\u00edch th\u01b0\u1edbc REM<\/th>\n            <th>Gi\u00e1 tr\u1ecb REM (rem)<\/th>\n        <\/tr>\n    <\/thead>\n    <tbody>\n        <tr>\n            <td>800<\/td>\n            <td>50<\/td>\n            <td>16<\/td>\n            <td>25 rem<\/td>\n        <\/tr>\n        <tr>\n            <td>800<\/td>\n            <td>55<\/td>\n            <td>16<\/td>\n            <td>27,5 rem<\/td>\n        <\/tr>\n        <tr>\n            <td>800<\/td>\n            <td>60<\/td>\n            <td>16<\/td>\n            <td>30 rem<\/td>\n        <\/tr>\n        <tr>\n            <td>800<\/td>\n            <td>65<\/td>\n            <td>16<\/td>\n            <td>32,5 rem<\/td>\n        <\/tr>\n        <tr>\n            <td>800<\/td>\n            <td>70<\/td>\n            <td>16<\/td>\n            <td>35 rem<\/td>\n        <\/tr>\n        <tr>\n            <td>800<\/td>\n            <td>75<\/td>\n            <td>16<\/td>\n            <td>37,5 rem<\/td>\n        <\/tr>\n        <tr>\n            <td>800<\/td>\n            <td>80<\/td>\n            <td>16<\/td>\n            <td>40 rem<\/td>\n        <\/tr>\n        <tr>\n            <td>800<\/td>\n            <td>85<\/td>\n            <td>16<\/td>\n            <td>42,5 rem<\/td>\n        <\/tr>\n        <tr>\n            <td>800<\/td>\n            <td>90<\/td>\n            <td>16<\/td>\n            <td>45 rem<\/td>\n        <\/tr>\n        <tr>\n            <td>800<\/td>\n            <td>95<\/td>\n            <td>16<\/td>\n            <td>47,5 rem<\/td>\n        <\/tr>\n        <tr>\n            <td>900<\/td>\n            <td>50<\/td>\n            <td>16<\/td>\n            <td>28,125 rem<\/td>\n        <\/tr>\n        <tr>\n            <td>900<\/td>\n            <td>55<\/td>\n            <td>16<\/td>\n            <td>30,94 rem<\/td>\n        <\/tr>\n        <tr>\n            <td>900<\/td>\n            <td>60<\/td>\n            <td>16<\/td>\n            <td>33,75 rem<\/td>\n        <\/tr>\n        <tr>\n            <td>900<\/td>\n            <td>65<\/td>\n            <td>16<\/td>\n            <td>36,56 rem<\/td>\n        <\/tr>\n        <tr>\n            <td>900<\/td>\n            <td>70<\/td>\n            <td>16<\/td>\n            <td>39,37 rem<\/td>\n        <\/tr>\n        <tr>\n            <td>900<\/td>\n            <td>75<\/td>\n            <td>16<\/td>\n            <td>42,19 rem<\/td>\n        <\/tr>\n        <tr>\n            <td>900<\/td>\n            <td>80<\/td>\n            <td>16<\/td>\n            <td>45 rem<\/td>\n        <\/tr>\n        <tr>\n            <td>900<\/td>\n            <td>85<\/td>\n            <td>16<\/td>\n            <td>47,81 rem<\/td>\n        <\/tr>\n        <tr>\n            <td>900<\/td>\n            <td>90<\/td>\n            <td>16<\/td>\n            <td>50,62 rem<\/td>\n        <\/tr>\n        <tr>\n            <td>900<\/td>\n            <td>95<\/td>\n            <td>16<\/td>\n            <td>53,44 rem<\/td>\n        <\/tr>\n        <tr>\n            <td>1000<\/td>\n            <td>50<\/td>\n            <td>16<\/td>\n            <td>31,25 rem<\/td>\n        <\/tr>\n        <tr>\n            <td>1000<\/td>\n            <td>55<\/td>\n            <td>16<\/td>\n            <td>34,38 rem<\/td>\n        <\/tr>\n        <tr>\n            <td>1000<\/td>\n            <td>60<\/td>\n            <td>16<\/td>\n            <td>37,5 rem<\/td>\n        <\/tr>\n        <tr>\n            <td>1000<\/td>\n            <td>65<\/td>\n            <td>16<\/td>\n            <td>40,62 rem<\/td>\n        <\/tr>\n        <tr>\n            <td>1000<\/td>\n            <td>70<\/td>\n            <td>16<\/td>\n            <td>43,75 rem<\/td>\n        <\/tr>\n        <tr>\n            <td>1000<\/td>\n            <td>75<\/td>\n            <td>16<\/td>\n            <td>46,88 rem<\/td>\n        <\/tr>\n        <tr>\n            <td>1000<\/td>\n            <td>80<\/td>\n            <td>16<\/td>\n            <td>50 rem<\/td>\n        <\/tr>\n        <tr>\n            <td>1000<\/td>\n            <td>85<\/td>\n            <td>16<\/td>\n            <td>53,12 ph\u1ea7n tr\u0103m<\/td>\n        <\/tr>\n        <tr>\n            <td>1000<\/td>\n            <td>90<\/td>\n            <td>16<\/td>\n            <td>56,25 rem<\/td>\n        <\/tr>\n        <tr>\n            <td>1000<\/td>\n            <td>95<\/td>\n            <td>16<\/td>\n            <td>59,38 rem<\/td>\n        <\/tr>\n    <\/tbody>\n<\/table>\n<\/div><\/div>\n\n\n<style>.kadence-column389_6f217a-3f > .kt-inside-inner-col,.kadence-column389_6f217a-3f > .kt-inside-inner-col:before{border-top-left-radius:0px;border-top-right-radius:0px;border-bottom-right-radius:0px;border-bottom-left-radius:0px;}.kadence-column389_6f217a-3f > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column389_6f217a-3f > .kt-inside-inner-col{flex-direction:column;}.kadence-column389_6f217a-3f > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column389_6f217a-3f > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column389_6f217a-3f, .kadence-column389_6f217a-3f h1, .kadence-column389_6f217a-3f h2, .kadence-column389_6f217a-3f h3, .kadence-column389_6f217a-3f h4, .kadence-column389_6f217a-3f h5, .kadence-column389_6f217a-3f h6{color:var(--global-palette9, #ffffff);}.kadence-column389_6f217a-3f a{color:var(--global-palette7, #EDF2F7);}.kadence-column389_6f217a-3f{position:relative;}@media all and (max-width: 1024px){.kadence-column389_6f217a-3f > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column389_6f217a-3f > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column389_6f217a-3f\"><div class=\"kt-inside-inner-col\">\n<h2 class=\"wp-block-heading\">T\u1ea1i sao n\u00ean s\u1eed d\u1ee5ng b\u1ed9 chuy\u1ec3n \u0111\u1ed5i VH sang REM?<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">1. C\u00f3 s\u1ef1 nh\u1ea5t qu\u00e1n trong thi\u1ebft k\u1ebf.<\/h3>\n\n\n\n<p>\u0110\u01a1n v\u1ecb REM t\u1ea1o ra s\u1ef1 th\u1ed1ng nh\u1ea5t v\u1ec1 v\u0103n b\u1ea3n, kh\u00f4ng gian v\u00e0 k\u00edch th\u01b0\u1edbc th\u00e0nh ph\u1ea7n. Chuy\u1ec3n \u0111\u1ed5i VH \u0111\u1ea3m b\u1ea3o k\u00edch th\u01b0\u1edbc theo chi\u1ec1u d\u1ecdc \u0111\u01b0\u1ee3c chia t\u1ef7 l\u1ec7 theo k\u00edch th\u01b0\u1edbc c\u1ee7a g\u1ed1c thay v\u00ec k\u00edch th\u01b0\u1edbc c\u1ee7a khung nh\u00ecn.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">2. T\u1ea1o h\u1ec7 th\u1ed1ng ph\u1ea3n h\u1ed3i theo th\u1eddi gian th\u1ef1c.<\/h3>\n\n\n\n<p>Thi\u1ebft k\u1ebf \u0111\u00e1p \u1ee9ng kh\u00f4ng ch\u1ec9 \u0111\u01a1n thu\u1ea7n l\u00e0 v\u1ea5n \u0111\u1ec1 v\u1ec1 chi\u1ec1u r\u1ed9ng m\u00e0 c\u00f2n l\u00e0 v\u1ea5n \u0111\u1ec1 v\u1ec1 chi\u1ec1u d\u1ecdc. Vi\u1ec7c chuy\u1ec3n \u0111\u1ed5i VH sang REM s\u1ebd gi\u00fap b\u1ea1n c\u00f3 \u0111\u01b0\u1ee3c b\u1ed1 c\u1ee5c l\u00fd t\u01b0\u1edfng sau khi ng\u01b0\u1eddi d\u00f9ng thu nh\u1ecf tr\u00ecnh duy\u1ec7t ho\u1eb7c chuy\u1ec3n \u0111\u1ed5i thi\u1ebft b\u1ecb.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">3. C\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng truy c\u1eadp<\/h3>\n\n\n\n<p>C\u00e1c b\u1ed1 c\u1ee5c \u0111\u01b0\u1ee3c t\u1ea1o b\u1eb1ng REM c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ec9nh theo t\u1ef7 l\u1ec7 v\u00ec ng\u01b0\u1eddi d\u00f9ng c\u00f3 th\u1ec3 \u0111i\u1ec1u ch\u1ec9nh ph\u00f4ng ch\u1eef m\u1eb7c \u0111\u1ecbnh \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o kh\u00f4ng ai b\u1ecb kh\u00f3a kh\u1ecfi trang web c\u1ee7a h\u1ecd.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">4. Ti\u1ebft ki\u1ec7m th\u1eddi gian t\u00ednh to\u00e1n<\/h3>\n\n\n\n<p>B\u1ed9 chuy\u1ec3n \u0111\u1ed5i VH sang REM c\u1ee7a ch\u00fang t\u00f4i cung c\u1ea5p k\u1ebft qu\u1ea3 ch\u00ednh x\u00e1c ch\u1ec9 trong v\u00e0i ph\u00fat, kh\u00f4ng gi\u1ed1ng nh\u01b0 m\u00e1y t\u00ednh CSS ho\u1eb7c t\u00ednh th\u1ee7 c\u00f4ng.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">5. B\u00e1n bu\u00f4n cho nh\u00e0 thi\u1ebft k\u1ebf v\u00e0 nh\u00e0 ph\u00e1t tri\u1ec3n.<\/h3>\n\n\n\n<p>B\u1ed9 chuy\u1ec3n \u0111\u1ed5i c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng b\u1ea5t k\u1ec3 b\u1ea1n c\u1ea7n ph\u00e1t tri\u1ec3n tr\u00ean n\u1ec1n t\u1ea3ng n\u00e0o: m\u1ed9t nh\u00e0 ph\u00e1t tri\u1ec3n front-end c\u1ea7n \u0111i\u1ec1u ch\u1ec9nh c\u00e1c \u0111i\u1ec3m d\u1eebng ph\u1ea3n h\u1ed3i \u0111\u1ec3 m\u1ecdi th\u1ee9 ho\u00e0n h\u1ea3o hay m\u1ed9t nh\u00e0 thi\u1ebft k\u1ebf c\u1ea7n \u0111\u1ea3m b\u1ea3o m\u1ecdi th\u1ee9 \u0111\u1ec1u ph\u00f9 h\u1ee3p.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">C\u00e1c tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng th\u1ef1c t\u1ebf<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Ph\u1ea7n Anh h\u00f9ng ph\u1ea3n h\u1ed3i:<\/strong> Chi\u1ec1u cao c\u1ee7a bi\u1ec3u ng\u1eef anh h\u00f9ng s\u1ebd \u0111\u01b0\u1ee3c \u0111o theo k\u00edch th\u01b0\u1edbc c\u1ee7a thi\u1ebft b\u1ecb (REM, kh\u00f4ng ph\u1ea3i VH).<\/li>\n\n\n\n<li><strong>Ki\u1ec3u ch\u1eef \u0111\u1ed9ng:<\/strong> \u0110\u00e2y l\u00e0 n\u01a1i k\u00edch th\u01b0\u1edbc v\u0103n b\u1ea3n \u0111\u01b0\u1ee3c thay \u0111\u1ed5i th\u00e0nh k\u00edch th\u01b0\u1edbc ph\u00f4ng ch\u1eef g\u1ed1c \u0111\u1ec3 v\u0103n b\u1ea3n c\u00f3 th\u1ec3 d\u1ec5 d\u00e0ng \u0111\u1ecdc \u0111\u01b0\u1ee3c tr\u00ean m\u1ecdi m\u00e0n h\u00ecnh.<\/li>\n\n\n\n<li><strong>Th\u00e0nh ph\u1ea7n UI:<\/strong> C\u00f3 s\u1ef1 c\u00e2n x\u1ee9ng khi thay \u0111\u1ed5i gi\u1eefa c\u00e1c ch\u1ebf \u0111\u1ed9, th\u1ebb v\u00e0 h\u1ed9p \u0111\u1ef1ng.<\/li>\n\n\n\n<li><strong>Thi\u1ebft k\u1ebf \u01b0u ti\u00ean kh\u1ea3 n\u0103ng ti\u1ebfp c\u1eadn: <\/strong>\u0110\u1ec3 \u0111\u1ea3m b\u1ea3o r\u1eb1ng c\u00e1c l\u1ef1a ch\u1ecdn c\u1ee7a ng\u01b0\u1eddi d\u00f9ng li\u00ean quan \u0111\u1ebfn t\u00f9y ch\u1ecdn ph\u00f3ng to v\u00e0 v\u0103n b\u1ea3n c\u1ee7a h\u1ecd \u0111\u01b0\u1ee3c tu\u00e2n th\u1ee7, h\u00e3y \u00e1p d\u1ee5ng c\u00e1c b\u1ed1 c\u1ee5c d\u1ef1a tr\u00ean REM.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Nh\u1eefng c\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p.<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">1. S\u1ef1 kh\u00e1c bi\u1ec7t ch\u00ednh gi\u1eefa VH v\u00e0 REM l\u00e0 g\u00ec?<\/h3>\n\n\n\n<p>VH \u0111\u01b0\u1ee3c t\u00ednh b\u1eb1ng t\u1ef7 l\u1ec7 gi\u1eefa k\u00edch th\u01b0\u1edbc v\u00e0 chi\u1ec1u cao c\u1ee7a khung nh\u00ecn (ph\u1ea7n tr\u00ecnh duy\u1ec7t \u0111\u01b0\u1ee3c hi\u1ec3n th\u1ecb), trong khi REM \u0111\u01b0\u1ee3c t\u00ednh b\u1eb1ng t\u1ef7 l\u1ec7 gi\u1eefa k\u00edch th\u01b0\u1edbc v\u00e0 c\u1ee1 ch\u1eef g\u1ed1c. VH \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1edfi k\u00edch th\u01b0\u1edbc m\u00e0n h\u00ecnh; REM \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1edfi c\u00e0i \u0111\u1eb7t v\u0103n b\u1ea3n.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">2. Khi n\u00e0o t\u00f4i n\u00ean s\u1eed d\u1ee5ng VH so v\u1edbi REM?<\/h3>\n\n\n\n<p>VH: S\u1eed d\u1ee5ng VH khi b\u1ea1n mu\u1ed1n c\u00e1c th\u00e0nh ph\u1ea7n \u0111\u01b0\u1ee3c thay \u0111\u1ed5i k\u00edch th\u01b0\u1edbc theo k\u00edch th\u01b0\u1edbc m\u00e0n h\u00ecnh (bi\u1ec3u ng\u1eef n\u1ed5i b\u1eadt ho\u1eb7c b\u1ed1 c\u1ee5c to\u00e0n m\u00e0n h\u00ecnh). S\u1eed d\u1ee5ng REM n\u1ebfu b\u1ea1n mu\u1ed1n kho\u1ea3ng c\u00e1ch v\u00e0 ki\u1ec3u ch\u1eef th\u00f4ng th\u01b0\u1eddng, kh\u00f4ng b\u1ecb \u1ea3nh h\u01b0\u1edfng b\u1edfi s\u1edf th\u00edch c\u1ee7a ng\u01b0\u1eddi d\u00f9ng.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">3. T\u00f4i c\u00f3 th\u1ec3 c\u00e1 nh\u00e2n h\u00f3a k\u00edch th\u01b0\u1edbc ph\u00f4ng ch\u1eef g\u1ed1c trong d\u1ef1 \u00e1n c\u1ee7a m\u00ecnh kh\u00f4ng?<\/h3>\n\n\n\n<p>C\u00f3. \u0110\u1ec3 thay \u0111\u1ed5i ph\u00f4ng ch\u1eef g\u1ed1c trong CSS, b\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng:<\/p>\n\n\n\n<pre class=\"wp-block-code has-theme-palette-2-background-color has-background\"><code>html { c\u1ee1 ch\u1eef: 18px; }<\/code><\/pre>\n\n\n\n<p>Sau \u0111\u00f3, t\u1ea5t c\u1ea3 c\u00e1c ph\u00e9p \u0111o c\u1ee7a REM s\u1ebd \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ec9nh.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">4. T\u1ea1i sao REM l\u1ea1i \u0111\u01b0\u1ee3c nhi\u1ec1u nh\u00e0 thi\u1ebft k\u1ebf \u1ee7ng h\u1ed9 nh\u1ea5t so v\u1edbi PX?<\/h3>\n\n\n\n<p>C\u00e1c \u0111\u01a1n v\u1ecb REM c\u00f3 th\u1ec3 m\u1edf r\u1ed9ng quy m\u00f4 v\u00e0 \u0111\u01b0\u1ee3c cung c\u1ea5p. Gi\u00e1 tr\u1ecb REM linh ho\u1ea1t theo s\u1edf th\u00edch tr\u00ecnh duy\u1ec7t c\u1ee7a ng\u01b0\u1eddi d\u00f9ng, tr\u00e1i ng\u01b0\u1ee3c v\u1edbi pixel c\u1ed1 \u0111\u1ecbnh, gi\u00fap t\u0103ng c\u01b0\u1eddng kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch v\u00e0 kh\u1ea3 n\u0103ng \u0111\u1ecdc c\u1ee7a ng\u01b0\u1eddi d\u00f9ng tr\u00ean nhi\u1ec1u thi\u1ebft b\u1ecb.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">5. B\u1ed9 chuy\u1ec3n \u0111\u1ed5i VH sang REM n\u00e0y ch\u00ednh x\u00e1c \u0111\u1ebfn m\u1ee9c n\u00e0o?<\/h3>\n\n\n\n<p>C\u00f4ng c\u1ee5 c\u1ee7a ch\u00fang t\u00f4i s\u1eed d\u1ee5ng c\u00e1c c\u00f4ng th\u1ee9c to\u00e1n h\u1ecdc h\u1ee3p l\u1ec7 \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o chuy\u1ec3n \u0111\u1ed5i ch\u00ednh x\u00e1c, t\u00f9y thu\u1ed9c v\u00e0o chi\u1ec1u cao c\u1ee7a khung nh\u00ecn v\u00e0 k\u00edch th\u01b0\u1edbc ph\u00f4ng ch\u1eef m\u00e0 b\u1ea1n cung c\u1ea5p.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Suy ngh\u0129 cu\u1ed1i c\u00f9ng<\/h2>\n\n\n\n<p>Vi\u1ec7c chuy\u1ec3n \u0111\u1ed5i t\u1eeb VH sang REM c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c coi l\u00e0 m\u1ed9t b\u01b0\u1edbc nh\u1ecf, do \u0111\u00f3 c\u00f3 th\u1ec3 l\u00e0 b\u01b0\u1edbc ti\u1ebfn l\u1edbn \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o r\u1eb1ng c\u00e1c thi\u1ebft k\u1ebf c\u1ee7a b\u1ea1n c\u00f3 kh\u1ea3 n\u0103ng th\u00edch \u1ee9ng, m\u1edf r\u1ed9ng v\u00e0 ti\u1ebfp c\u1eadn \u0111\u01b0\u1ee3c.<\/p>\n\n\n\n<p>V\u1edbi B\u1ed9 chuy\u1ec3n \u0111\u1ed5i VH sang REM, ToolsMate c\u00f3 th\u1ec3 ti\u1ebft ki\u1ec7m th\u1eddi gian, tr\u00e1nh vi\u1ec7c ph\u1ea3i \u0111o\u00e1n m\u00f2 v\u00e0 t\u1ea1o ra c\u00e1c thi\u1ebft k\u1ebf \u0111\u00e1p \u1ee9ng ho\u00e0n h\u1ea3o tr\u00ean m\u1ecdi m\u00e0n h\u00ecnh. Vi\u1ebft m\u00e3 cho trang web, t\u1ea1o trang \u0111\u00edch ho\u1eb7c ph\u00e1t tri\u1ec3n th\u00e0nh ph\u1ea7n giao di\u1ec7n ng\u01b0\u1eddi d\u00f9ng \u2013 \u0111\u00e2y l\u00e0 m\u1ed9t c\u00f4ng c\u1ee5 h\u1eefu \u00edch v\u00e0 nhanh ch\u00f3ng gi\u00fap b\u1ea1n nhanh ch\u00f3ng chuy\u1ec3n \u0111\u1ed5i \u0111\u01a1n v\u1ecb.<\/p>\n<\/div><\/div>\n\n\n<style>.kadence-column389_4d2417-27 > .kt-inside-inner-col{padding-top:var(--global-kb-spacing-xs, 1rem);padding-right:var(--global-kb-spacing-xs, 1rem);padding-bottom:var(--global-kb-spacing-xs, 1rem);padding-left:var(--global-kb-spacing-xs, 1rem);}.kadence-column389_4d2417-27 > .kt-inside-inner-col,.kadence-column389_4d2417-27 > .kt-inside-inner-col:before{border-top-left-radius:0px;border-top-right-radius:0px;border-bottom-right-radius:0px;border-bottom-left-radius:0px;}.kadence-column389_4d2417-27 > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column389_4d2417-27 > .kt-inside-inner-col{flex-direction:column;}.kadence-column389_4d2417-27 > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column389_4d2417-27 > .kt-inside-inner-col{background-color:var(--global-palette9, #ffffff);}.kadence-column389_4d2417-27 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column389_4d2417-27{position:relative;}@media all and (max-width: 1024px){.kadence-column389_4d2417-27 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column389_4d2417-27 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column389_4d2417-27\"><div class=\"kt-inside-inner-col\">\n<h2 class=\"wp-block-heading has-theme-palette-2-color has-text-color has-link-color wp-elements-69bfa10ae711e85c4c403788f0b0e066\">Th\u00eam nhi\u1ec1u chuy\u1ec3n \u0111\u1ed5i VH &amp; REM<\/h2>\n<\/div><\/div>\n\n\n<style>.kadence-column389_51c35c-81 > 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class=\"wp-block-list\">\n<li><a href=\"https:\/\/toolsmate.online\/vi\/rem-to-cm-converter\/\">REM sang CM<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/toolsmate.online\/vi\/rem-to-px-converter\/\">REM sang PX<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/toolsmate.online\/vi\/rem-to-em-converter\/\">REM sang EM<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/toolsmate.online\/vi\/rem-to-vw-converter\/\">REM sang VW<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/toolsmate.online\/vi\/rem-to-pt-converter\/\">REM sang PT<\/a><\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/toolsmate.online\/vi\/rem-to-in-converter\/\">REM \u0110\u1ebeN INCH<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/toolsmate.online\/vi\/rem-to-pc-converter\/\">REM sang PC<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/toolsmate.online\/vi\/rem-to-vh-converter\/\">REM sang VH<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/toolsmate.online\/vi\/rem-to-mm-converter\/\">REM sang MM<\/a><\/li>\n\n\n\n<li><a 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PC<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/toolsmate.online\/vi\/vh-to-px-converter\/\">VH sang PX<\/a><\/li>\n<\/ul>\n<\/div><\/div>\n\n<\/div><\/div>","protected":false},"excerpt":{"rendered":"<p>VH TO REM CONVERTER Viewport Height VH Unit REM Size Result will be shown here VH to REM Converter REM Converter Viewport Height to REM Units. The development of responsive sites is demanding in terms of flexibility. 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