{"id":288,"date":"2024-08-19T09:17:02","date_gmt":"2024-08-19T09:17:02","guid":{"rendered":"https:\/\/pixelsconverter.online\/?page_id=288"},"modified":"2025-10-24T02:13:30","modified_gmt":"2025-10-24T02:13:30","slug":"em-to-rem-converter","status":"publish","type":"page","link":"https:\/\/toolsmate.online\/vi\/em-to-rem-converter\/","title":{"rendered":"Chuy\u1ec3n \u0111\u1ed5i EM sang REM"},"content":{"rendered":"<style>.kb-row-layout-id288_fddf70-63 > .kt-row-column-wrap{align-content:start;}:where(.kb-row-layout-id288_fddf70-63 > .kt-row-column-wrap) > .wp-block-kadence-column{justify-content:start;}.kb-row-layout-id288_fddf70-63 > .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-id288_fddf70-63 > .kt-row-layout-overlay{opacity:0.30;}@media all and (max-width: 1024px){.kb-row-layout-id288_fddf70-63 > .kt-row-column-wrap{grid-template-columns:minmax(0, 1fr);}}@media all and (max-width: 767px){.kb-row-layout-id288_fddf70-63 > .kt-row-column-wrap{grid-template-columns:minmax(0, 1fr);}}<\/style><div class=\"kb-row-layout-wrap kb-row-layout-id288_fddf70-63 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-column288_fb81db-92 > .kt-inside-inner-col,.kadence-column288_fb81db-92 > .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-column288_fb81db-92 > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column288_fb81db-92 > .kt-inside-inner-col{flex-direction:column;}.kadence-column288_fb81db-92 > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column288_fb81db-92 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column288_fb81db-92{position:relative;}@media all and (max-width: 1024px){.kadence-column288_fb81db-92 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column288_fb81db-92 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column288_fb81db-92\"><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-486e2c543b9e75cb6eed3a4dae58eb36\">B\u1ed8 CHUY\u1ec2N \u0110\u1ed4I EM SANG REM<\/h1>\n<\/div><\/div>\n\n\n<style>.kadence-column288_b1e148-fe > .kt-inside-inner-col,.kadence-column288_b1e148-fe > .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-column288_b1e148-fe > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column288_b1e148-fe > .kt-inside-inner-col{flex-direction:column;}.kadence-column288_b1e148-fe > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column288_b1e148-fe > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column288_b1e148-fe{position:relative;}@media all and (max-width: 1024px){.kadence-column288_b1e148-fe > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column288_b1e148-fe > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column288_b1e148-fe\"><div class=\"kt-inside-inner-col\">\n<div class=\"container\">\n    <div class=\"input-group\">\n        <input type=\"number\" id=\"emInput\" placeholder=\"Nh\u1eadp gi\u00e1 tr\u1ecb EM\">\n        <label for=\"emInput\">EM<\/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=\"emSizeInput\" placeholder=\"Nh\u1eadp gi\u00e1 tr\u1ecb k\u00edch th\u01b0\u1edbc EM\">\n        <label for=\"emSizeInput\">K\u00edch th\u01b0\u1edbc EM<\/label>\n    <\/div>\n    <div class=\"input-group\">\n        <input type=\"number\" id=\"remSizeInput\" placeholder=\"Nh\u1eadp gi\u00e1 tr\u1ecb k\u00edch th\u01b0\u1edbc REM\">\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 emInput = document.getElementById('emInput');\n    const emSizeInput = document.getElementById('emSizeInput');\n    const remSizeInput = document.getElementById('remSizeInput');\n    const resultDisplay = document.getElementById('resultDisplay');\n    const copyIcon = document.createElement('span'); \/\/ Create the copy icon container\n\n    \/\/ Set default values for EM Size and REM Size\n    emSizeInput.value = 16; \/\/ Default EM size\n    remSizeInput.value = 32; \/\/ Default REM size\n\n    \/\/ Function to convert EM to REM\n    function convertEmToRem() {\n        const emValue = parseFloat(emInput.value);\n        const emSizeValue = parseFloat(emSizeInput.value);\n        const remSizeValue = parseFloat(remSizeInput.value);\n        \n        if (!isNaN(emValue) && !isNaN(emSizeValue) && !isNaN(remSizeValue)) {\n            const remValue = (emValue * emSizeValue) \/ remSizeValue; \/\/ Convert EM to REM\n\n            \/\/ Check if the remValue is a whole number\n            const displayValue = (remValue % 1 === 0) ? remValue : remValue.toFixed(2);\n            resultDisplay.textContent = displayValue + ' rem';  \/\/ Display the result in REM with 'rem' unit\n        } else {\n            resultDisplay.textContent = 'Result will be shown here';\n        }\n        resultDisplay.appendChild(copyIcon);  \/\/ Append the copy icon next to the result\n    }\n\n    \/\/ Add event listeners for the input fields\n    emInput.addEventListener('input', convertEmToRem);\n    emSizeInput.addEventListener('input', convertEmToRem);\n    remSizeInput.addEventListener('input', convertEmToRem);\n\n    \/\/ Add the SVG copy icon directly next to the result text\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';  \/\/ Add some space between result and icon\n    copyIcon.style.verticalAlign = 'middle';  \/\/ Align the icon properly with the text\n    copyIcon.style.transition = 'transform 0.3s ease';  \/\/ Animation on click\n\n    \/\/ Function to copy result to clipboard when the icon is clicked\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();  \/\/ Remove the 'rem' unit and trim the value\n            navigator.clipboard.writeText(valueToCopy).then(() => {\n                \/\/ Animation: Copy icon will grow slightly and then shrink back to indicate the action\n                copyIcon.style.transform = 'scale(1.2)';  \/\/ Enlarge the icon slightly\n                setTimeout(() => {\n                    copyIcon.style.transform = 'scale(1)';  \/\/ Return to original size after animation\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-em-converter\/'; \/\/ Replace with the desired page link\n});\n\n<\/script>\n<style>\n.container {\n    background-color: #fff;\n    padding: 30px;\n    border-radius: 10px;\n    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);\n    max-width: 600px;\n    width: 100%;\n    display: flex;\n    flex-direction: column;\n    align-items: center; \/* Center content horizontally *\/\n}\n\n.input-group {\n    position: relative;\n    width: 100%; \/* Full width for the input fields *\/\n    display: flex;\n    margin-bottom:15px;\n    justify-content: space-between; \/* Align inputs on both sides *\/\n}\n\nlabel {\n    position: absolute;\n    top: -6px;\n    left: 15px;\n    background-color: #fff;\n    padding: 0 5px;\n    font-size: 0.9rem;\n    color: #007bff;\n}\n\n.rotate-icon {\n    padding-bottom:10px;\n    display: inline-block;\n    cursor: pointer;\n    transition: transform 0.5s ease;\n    margin: 0 20px;\n    align-self: center; \/* Centers the icon between inputs *\/\n}\n\n.rotate-icon:hover {\n    transform: rotate(360deg);\n}\n\n#converterLink {\n    display: block;\n    margin-top: 20px;\n    font-size: 16px;\n    color: blue;\n    text-decoration: underline;\n}\n\n.result {\n    text-align: center;\n    font-size: 1.2rem;\n    font-weight: 600;\n    margin-top: 10px;\n    padding: 8px 10px;\n    background-color: #e7f3ff;\n    border-radius: 4px;\n    width:100%;\n}\n\n\/* Add transition for the copy icon *\/\n.copy-icon {\n    cursor: pointer;\n    margin-left: 10px;\n    vertical-align: middle;\n    transition: background-color 0.3s ease, transform 0.3s ease;\n    padding: 5px;\n    border-radius: 20%; \/* Make the icon look better with rounded corners *\/\n}\n\n@media (max-width: 600px) {\n    .container {\n        padding: 35px 15px;\n    }\n\n    .result {\n        font-size: 1rem;\n    }\n}\n<\/style>\n<\/div><\/div>\n\n\n<style>.kadence-column288_e96041-a4 > .kt-inside-inner-col,.kadence-column288_e96041-a4 > .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-column288_e96041-a4 > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column288_e96041-a4 > .kt-inside-inner-col{flex-direction:column;}.kadence-column288_e96041-a4 > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column288_e96041-a4 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column288_e96041-a4, .kadence-column288_e96041-a4 h1, .kadence-column288_e96041-a4 h2, .kadence-column288_e96041-a4 h3, .kadence-column288_e96041-a4 h4, .kadence-column288_e96041-a4 h5, .kadence-column288_e96041-a4 h6{color:var(--global-palette9, #ffffff);}.kadence-column288_e96041-a4 a{color:var(--global-palette7, #EDF2F7);}.kadence-column288_e96041-a4{position:relative;}@media all and (max-width: 1024px){.kadence-column288_e96041-a4 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column288_e96041-a4 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column288_e96041-a4\"><div class=\"kt-inside-inner-col\">\n<h2 class=\"wp-block-heading\">B\u1ed9 chuy\u1ec3n \u0111\u1ed5i EM sang REM Gi\u1ea3m b\u1edbt g\u00e1nh n\u1eb7ng cho b\u1ea1n v\u1edbi thi\u1ebft k\u1ebf web \u0111\u00e1p \u1ee9ng.<\/h2>\n\n\n\n<p>\u0110\u1ec3 t\u1ea1o m\u1ed9t trang web \u0111\u00e1p \u1ee9ng, n\u00f3 c\u1ea7n c\u00f3 t\u00ednh nh\u1ea5t qu\u00e1n v\u1ec1 b\u1ea3n ch\u1ea5t v\u00e0 thi\u1ebft k\u1ebf. C\u00f4ng c\u1ee5 chuy\u1ec3n \u0111\u1ed5i EM sang REM ToolsMate \u0111\u1ea3m b\u1ea3o vi\u1ec7c chuy\u1ec3n \u0111\u1ed5i \u0111\u01a1n v\u1ecb EM sang REM \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n t\u1ef1 \u0111\u1ed9ng m\u1ed9t c\u00e1ch d\u1ec5 d\u00e0ng. B\u1ea1n c\u00f3 th\u1ec3 thay \u0111\u1ed5i k\u00edch th\u01b0\u1edbc ph\u00f4ng ch\u1eef ho\u1eb7c thay \u0111\u1ed5i c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng trong thi\u1ebft k\u1ebf, tuy nhi\u00ean, t\u00f3m l\u1ea1i, c\u00f4ng c\u1ee5 tr\u1ef1c tuy\u1ebfn n\u00e0y cho ph\u00e9p b\u1ea1n gi\u1eef cho thi\u1ebft k\u1ebf c\u1ee7a m\u00ecnh \u0111\u01a1n gi\u1ea3n, nh\u1ecf g\u1ecdn v\u00e0 d\u1ec5 s\u1eed d\u1ee5ng tr\u00ean m\u1ecdi thi\u1ebft b\u1ecb.<\/p>\n\n\n\n<p>Ch\u1ec9 c\u1ea7n m\u1ed9t c\u00fa nh\u1ea5p chu\u1ed9t v\u00e0 \u0111\u1ed9 ch\u00ednh x\u00e1c \u0111\u1ebfn t\u1eebng pixel c\u00f3 th\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c m\u00e0 kh\u00f4ng c\u1ea7n b\u1ea5t k\u1ef3 ph\u00e9p t\u00ednh n\u00e0o kh\u00e1c, v\u00e0 c\u00e1c gi\u00e1 tr\u1ecb EM c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c chuy\u1ec3n \u0111\u1ed5i th\u00e0nh gi\u00e1 tr\u1ecb REM t\u01b0\u01a1ng \u0111\u01b0\u01a1ng. Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y nhanh ch\u00f3ng, ch\u00ednh x\u00e1c v\u00e0 d\u1ec5 s\u1eed d\u1ee5ng cho c\u1ea3 ng\u01b0\u1eddi d\u00f9ng nghi\u1ec7p d\u01b0 v\u00e0 l\u1eadp tr\u00ecnh vi\u00ean chuy\u00ean nghi\u1ec7p.<\/p>\n\n\n\n<h1 class=\"wp-block-heading\">B\u1ed9 chuy\u1ec3n \u0111\u1ed5i EM sang REM l\u00e0 g\u00ec?<\/h1>\n\n\n\n<p>B\u1ed9 chuy\u1ec3n \u0111\u1ed5i EM sang REM l\u00e0 m\u1ed9t \u1ee9ng d\u1ee5ng web d\u00f9ng \u0111\u1ec3 chuy\u1ec3n \u0111\u1ed5i \u0111\u01a1n v\u1ecb EM (em) sang REM (g\u1ed1c em). \u0110\u00e2y l\u00e0 hai \u0111\u01a1n v\u1ecb CSS t\u01b0\u01a1ng \u0111\u1ed1i \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh k\u00edch th\u01b0\u1edbc ph\u00f4ng ch\u1eef, kho\u1ea3ng c\u00e1ch v\u00e0 k\u00edch th\u01b0\u1edbc b\u1ed1 c\u1ee5c trong thi\u1ebft k\u1ebf web.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>EM (em)<\/strong> l\u00e0 t\u1ef7 l\u1ec7 c\u1ee7a ph\u1ea7n cha c\u1ee7a ph\u00f4ng ch\u1eef.<\/li>\n\n\n\n<li><strong>REM (rem)<\/strong> l&agrave; t\u01b0\u01a1ng \u0111\u1ed1i v\u1edbi k&iacute;ch th\u01b0\u1edbc ph&ocirc;ng ch\u1eef c\u1ee7a ph\u1ea7n t\u1eed g\u1ed1c (&lt;html&gt;).<\/li>\n<\/ul>\n\n\n\n<p>Ngh\u0129a l\u00e0 c\u00e1c \u0111\u01a1n v\u1ecb EM kh\u00f4ng c\u1ea7n ph\u1ea3i gi\u1ed1ng nhau \u1edf m\u1ecdi ph\u1ea7n trong b\u1ea3ng \u0111\u1ecbnh ki\u1ec3u c\u1ee7a b\u1ea1n, nh\u01b0ng c\u00e1c \u0111\u01a1n v\u1ecb REM th\u00ec ph\u1ea3i gi\u1ed1ng nhau. Vi\u1ec7c chuy\u1ec3n \u0111\u1ed5i EM sang REM s\u1ebd gi\u00fap b\u1ea1n tr\u00e1nh \u0111\u01b0\u1ee3c c\u00e1c v\u1ea5n \u0111\u1ec1 v\u1ec1 t\u1ef7 l\u1ec7 v\u00e0 \u0111\u1ea1t \u0111\u01b0\u1ee3c t\u1ef7 l\u1ec7 \u0111\u00e1p \u1ee9ng b\u1ec1n v\u1eefng.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">T\u1ea7m quan tr\u1ecdng c\u1ee7a vi\u1ec7c chuy\u1ec3n \u0111\u1ed5i EM sang REM.<\/h2>\n\n\n\n<p>Vi\u1ec7c ph\u00e1 v\u1ee1 b\u1ed1 c\u1ee5c c\u1ee7a b\u1ea1n khi l\u00e0m vi\u1ec7c v\u1edbi c\u00e1c \u0111\u01a1n v\u1ecb h\u1eb1ng s\u1ed1, khi l\u00e0m vi\u1ec7c v\u1edbi m\u1ed9t d\u1ef1 \u00e1n l\u1edbn ho\u1eb7c n\u0103ng \u0111\u1ed9ng, l\u00e0 ho\u00e0n to\u00e0n kh\u1ea3 thi. C\u00e1c \u0111\u01a1n v\u1ecb EM c\u00f3 th\u1ec3 t\u00f9y \u00fd m\u1edf r\u1ed9ng, m\u1eb7c d\u00f9 \u0111\u00f4i khi ch\u00fang c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn vi\u1ec7c m\u1edf r\u1ed9ng kh\u00f4ng mong mu\u1ed1n khi t\u00edch h\u1ee3p v\u00e0o nhi\u1ec1u th\u00e0nh ph\u1ea7n. V\u1ea5n \u0111\u1ec1 n\u00e0y \u0111\u01b0\u1ee3c gi\u1ea3i quy\u1ebft b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng c\u00e1c \u0111\u01a1n v\u1ecb REM, cung c\u1ea5p cho t\u1ea5t c\u1ea3 ki\u1ec3u ch\u1eef v\u00e0 kho\u1ea3ng c\u00e1ch m\u1ed9t ch\u00fat n\u1ec1n t\u1ea3ng chung.<\/p>\n\n\n\n<p><strong>B\u1eb1ng c\u00e1ch chuy\u1ec3n \u0111\u1ed5i EM sang REM:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>B\u1ea1n c\u0169ng c\u00f3 th\u1ec3 ki\u1ec3m so\u00e1t k\u00edch th\u01b0\u1edbc ph\u00f4ng ch\u1eef \u1edf m\u1ee9c \u0111\u1ed9 t\u1ed1t h\u01a1n.<\/li>\n\n\n\n<li>B\u1ea1n v\u1eabn c\u00f3 th\u1ec3 thi\u1ebft k\u1ebf n\u00f3 v\u00e0 n\u00f3 c\u00f3 th\u1ec3 d\u1ef1 \u0111o\u00e1n \u0111\u01b0\u1ee3c.<\/li>\n\n\n\n<li>CSS c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c b\u1ea3o tr\u00ec v\u00e0 g\u1ee1 l\u1ed7i d\u1ec5 d\u00e0ng.<\/li>\n\n\n\n<li>N\u00f3 c\u0169ng d\u1ec5 d\u00e0ng c\u00f3 s\u1eb5n v\u00ec c\u00e1c v\u0103n b\u1ea3n \u0111\u1ec1u chu\u1ea9n tr\u00ean m\u1ecdi thi\u1ebft b\u1ecb.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">C\u00f4ng th\u1ee9c chuy\u1ec3n \u0111\u1ed5i EM sang REM<\/h2>\n\n\n\n<p>Ph\u01b0\u01a1ng tr\u00ecnh chuy\u1ec3n \u0111\u1ed5i EM th\u00e0nh REM qu\u00e1 \u0111\u01a1n gi\u1ea3n:<\/p>\n\n\n\n<pre class=\"wp-block-code has-theme-palette-6-background-color has-background\"><code>REM = EM \u00d7 K\u00edch th\u01b0\u1edbc ph\u00f4ng ch\u1eef ph\u1ea7n t\u1eed hi\u1ec7n t\u1ea1i \/ K\u00edch th\u01b0\u1edbc ph\u00f4ng ch\u1eef g\u1ed1c<\/code><\/pre>\n\n\n\n<p>K\u00edch th\u01b0\u1edbc ph\u00f4ng ch\u1eef m\u1eb7c \u0111\u1ecbnh l\u00e0 16 pixel, nh\u01b0ng h\u1ea7u h\u1ebft c\u00e1c tr\u00ecnh duy\u1ec7t v\u00e0 thi\u1ebft k\u1ebf hi\u1ec7n \u0111\u1ea1i \u0111\u1ec1u c\u00f3 k\u00edch th\u01b0\u1edbc ph\u00f4ng ch\u1eef m\u1eb7c \u0111\u1ecbnh l\u00e0 16 pixel. \u0110i\u1ec1u n\u00e0y ng\u1ee5 \u00fd r\u1eb1ng vi\u1ec7c chuy\u1ec3n \u0111\u1ed5i c\u1ea3 EM v\u00e0 REM s\u1ebd nh\u01b0 sau:<\/p>\n\n\n\n<pre class=\"wp-block-code has-theme-palette-6-background-color has-background\"><code>REM = EM \u00d7 1<\/code><\/pre>\n\n\n\n<p>\u0110i\u1ec1u n\u00e0y ng\u1ee5 \u00fd r\u1eb1ng m\u1ed9t \u0111\u01a1n v\u1ecb em t\u01b0\u01a1ng \u1ee9ng v\u1edbi m\u1ed9t \u0111\u01a1n v\u1ecb rem, nh\u01b0ng v\u00ec c\u00f3 c\u00e1c \u0111i\u1ec1u ki\u1ec7n sau: c\u1ea3 hai \u0111\u1ec1u ph\u1ea3i tham chi\u1ebfu \u0111\u1ebfn c\u00f9ng m\u1ed9t c\u1ee1 ch\u1eef c\u01a1 b\u1ea3n. N\u1ebfu kh\u00f4ng, c\u00f4ng c\u1ee5 s\u1ebd xem x\u00e9t c\u00e1c c\u00e0i \u0111\u1eb7t c\u1ee7a b\u1ea1n.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">V\u00ed d\u1ee5 th\u1ef1c t\u1ebf: EM tr\u1edf th\u00e0nh REM.<\/h2>\n\n\n\n<p>\u0110\u1ec3 l\u1ea5y v\u00ed d\u1ee5 v\u1ec1 th\u1ebf gi\u1edbi th\u1ef1c, ch\u00fang ta c\u00f3 th\u1ec3 n\u00eau:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Gi\u1ea3 s\u1eed k\u00edch th\u01b0\u1edbc ph\u00f4ng ch\u1eef c\u1ee7a ph\u1ea7n t\u1eed g\u1ed1c l\u00e0 16 pixel.<\/li>\n\n\n\n<li>M\u1ed9t trong nh\u1eefng kh\u00eda c\u1ea1nh c\u1ee7a b\u1ea1n l\u00e0 k\u00edch th\u01b0\u1edbc ph\u00f4ng ch\u1eef g\u1ed1c l\u00e0 20px.<\/li>\n\n\n\n<li>B\u1ea1n \u0111\u1eb7t m\u1ed9t ph\u1ea7n t\u1eed th\u00e0nh 1,25em.<\/li>\n<\/ul>\n\n\n\n<p>B\u00e2y gi\u1edd ch\u00fang ta mu\u1ed1n \u0111\u00e1nh gi\u00e1 gi\u00e1 tr\u1ecb REM t\u01b0\u01a1ng \u0111\u01b0\u01a1ng:<\/p>\n\n\n\n<pre class=\"wp-block-code has-theme-palette-6-background-color has-background\"><code>1,25em \u00d7 20px \/ 16px = 1,5625rem<\/code><\/pre>\n\n\n\n<p>V\u00ec th\u1ebf, <strong>1,25em = 1,56rem.<\/strong><\/p>\n\n\n\n<p>\u0110i\u1ec1u n\u00e0y cho th\u1ea5y gi\u00e1 tr\u1ecb c\u1ee7a EM ph\u1ee5 thu\u1ed9c v\u00e0o k\u00edch th\u01b0\u1edbc ph\u00f4ng ch\u1eef g\u1ed1c c\u1ee7a ch\u00fang, nh\u01b0ng gi\u00e1 tr\u1ecb c\u1ee7a REM th\u00ec c\u1ed1 \u0111\u1ecbnh. B\u1ed9 chuy\u1ec3n \u0111\u1ed5i c\u1ee7a ch\u00fang t\u00f4i c\u00f3 th\u1ec3 d\u1ec5 d\u00e0ng \u0111\u01b0a ra k\u1ebft qu\u1ea3 n\u00e0y m\u00e0 kh\u00f4ng c\u1ea7n b\u1ea5t k\u1ef3 t\u00ednh to\u00e1n th\u1ee7 c\u00f4ng n\u00e0o.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Sau khi chuy\u1ec3n \u0111\u1ed5i EM sang REM (T\u1eebng b\u01b0\u1edbc).<\/h2>\n\n\n\n<p>C\u00f4ng c\u1ee5 chuy\u1ec3n \u0111\u1ed5i EM sang REM \u0111\u01b0\u1ee3c \u0111\u01a1n gi\u1ea3n h\u00f3a v\u00e0 nhanh ch\u00f3ng. \u1ee8ng d\u1ee5ng c\u1ee7a n\u00f3 c\u00f3 th\u1ec3 mang l\u1ea1i l\u1ee3i \u00edch theo nh\u1eefng c\u00e1ch sau:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">B\u01b0\u1edbc 1: Nh\u1eadp gi\u00e1 tr\u1ecb EM c\u1ee7a b\u1ea1n<\/h3>\n\n\n\n<p>Nh\u1eadp s\u1ed1 l\u01b0\u1ee3ng EM m\u00e0 b\u1ea1n mu\u1ed1n \u0111\u1ed5i v\u00e0o \u00f4 nh\u1eadp li\u1ec7u, v\u00ed d\u1ee5 nh\u01b0 1,5em.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">B\u01b0\u1edbc 2: Nh\u1eadn chuy\u1ec3n \u0111\u1ed5i t\u1ee9c th\u00ec<\/h3>\n\n\n\n<p>C\u00f4ng c\u1ee5 s\u1ebd t\u1ef1 \u0111\u1ed9ng t\u00ednh to\u00e1n v\u00e0 hi\u1ec3n th\u1ecb REM t\u01b0\u01a1ng \u0111\u01b0\u01a1ng theo th\u1eddi gian th\u1ef1c. K\u1ebft qu\u1ea3 s\u1ebd \u0111\u01b0\u1ee3c t\u1ef1 \u0111\u1ed9ng c\u1eadp nh\u1eadt khi b\u1ea1n nh\u1eadp.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">B\u01b0\u1edbc 3: H\u1ee7y chuy\u1ec3n \u0111\u1ed5i (T\u00f9y ch\u1ecdn)<\/h3>\n\n\n\n<p>Mu\u1ed1n chuy\u1ec3n sang h\u01b0\u1edbng kh\u00e1c? T\u1ea5t c\u1ea3 nh\u1eefng g\u00ec h\u1ecd c\u1ea7n l\u00e0m l\u00e0 nh\u1eadp gi\u00e1 tr\u1ecb REM v\u00e0 b\u1ed9 chuy\u1ec3n \u0111\u1ed5i s\u1ebd t\u1ef1 \u0111\u1ed9ng cung c\u1ea5p gi\u00e1 tr\u1ecb EM.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">B\u01b0\u1edbc 4: Sao ch\u00e9p v\u00e0 s\u1eed d\u1ee5ng trong m\u00e3 c\u1ee7a b\u1ea1n<\/h3>\n\n\n\n<p>Sau khi c\u00f3 \u0111\u01b0\u1ee3c gi\u00e1 tr\u1ecb REM c\u1ea7n thi\u1ebft, t\u1ea5t c\u1ea3 nh\u1eefng g\u00ec b\u1ea1n c\u1ea7n l\u00e0m l\u00e0 sao ch\u00e9p v\u00e0 d\u00e1n v\u00e0o b\u1ea3ng \u0111\u1ecbnh ki\u1ec3u CSS c\u1ee7a m\u00ecnh, sau \u0111\u00f3 b\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng c\u00f9ng m\u1ed9t t\u1ef7 l\u1ec7 tr\u00ean m\u1ecdi thi\u1ebft b\u1ecb.<\/p>\n\n\n\n<p>V\u1eady l\u00e0 xong! Kh\u00f4ng c\u00f2n ph\u1ea3i ph\u1ecfng \u0111o\u00e1n v\u00e0 t\u00ednh to\u00e1n tr\u00ean b\u1ea3ng t\u00ednh n\u1eefa \u2013 k\u1ebft qu\u1ea3 tr\u1ef1c ti\u1ebfp v\u00e0 ch\u00ednh x\u00e1c.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Chuy\u1ec3n \u0111\u1ed5i sang b\u1ea3ng tham chi\u1ebfu (K\u00edch th\u01b0\u1edbc ph\u00f4ng ch\u1eef g\u1ed1c 16px)<\/h2>\n<\/div><\/div>\n\n\n<style>.kadence-column288_59a1b4-f5 > .kt-inside-inner-col,.kadence-column288_59a1b4-f5 > .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-column288_59a1b4-f5 > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column288_59a1b4-f5 > .kt-inside-inner-col{flex-direction:column;}.kadence-column288_59a1b4-f5 > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column288_59a1b4-f5 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column288_59a1b4-f5{position:relative;}@media all and (max-width: 1024px){.kadence-column288_59a1b4-f5 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column288_59a1b4-f5 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column288_59a1b4-f5\"><div class=\"kt-inside-inner-col\">\n<table border=\"1\">\n    <thead>\n        <tr>\n            <th>Gi\u00e1 tr\u1ecb EM<\/th>\n            <th>K\u00edch th\u01b0\u1edbc EM (PX)<\/th>\n            <th>K\u00edch th\u01b0\u1edbc REM (PX)<\/th>\n            <th>K\u00edch th\u01b0\u1edbc REM (PX)<\/th>\n        <\/tr>\n    <\/thead>\n    <tbody>\n        <tr>\n            <td>2<\/td>\n            <td>16<\/td>\n            <td>32<\/td>\n            <td>1,00 rem<\/td>\n        <\/tr>\n        <tr>\n            <td>3.5<\/td>\n            <td>16<\/td>\n            <td>32<\/td>\n            <td>1,75 rem<\/td>\n        <\/tr>\n        <tr>\n            <td>4<\/td>\n            <td>20<\/td>\n            <td>25<\/td>\n            <td>3,20 rem<\/td>\n        <\/tr>\n        <tr>\n            <td>1.5<\/td>\n            <td>14<\/td>\n            <td>28<\/td>\n            <td>0,75 rem<\/td>\n        <\/tr>\n        <tr>\n            <td>5<\/td>\n            <td>18<\/td>\n            <td>36<\/td>\n            <td>2,50 rem<\/td>\n        <\/tr>\n    <\/tbody>\n<\/table>\n<style>\ntable {\n            width: 100%;\n            border-collapse: collapse;\n            margin-bottom: 20px;\n            background-color: #ffffff;\n            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);\n        }\n        th, td {\n            padding: 15px;\n            text-align: center;\n            border: 1px solid #dddddd;\n        }\n        th {\n            background-color: #007bff;\n            color: white;\n        }\n        td {\n            font-size: 1rem;\n        }\n        @media only screen and (max-width: 768px) {\n            th, td {\n                padding: 10px;\n                font-size: 0.9rem;\n            }\n        }\n        @media only screen and (max-width: 480px) {\n            th, td {\n                padding: 8px;\n                font-size: 0.8rem;\n            }\n        }\n    <\/style>\n<\/style>\n\n\n\n<p class=\"has-theme-palette-9-color has-text-color has-link-color wp-elements-5765a2d74c13630fc7bff40611b3f903\">B\u1ed9 chuy\u1ec3n \u0111\u1ed5i EM sang REM c\u00f3 kh\u1ea3 n\u0103ng mang l\u1ea1i nh\u1eefng l\u1ee3i \u00edch sau.<\/p>\n\n\n\n<p class=\"has-theme-palette-9-color has-text-color has-link-color wp-elements-3ee74470525ed6a0f55a6351f3c6484b\">Nh\u1eefng l\u1ee3i th\u1ebf c\u1ee7a c\u00f4ng c\u1ee5 khi s\u1eed d\u1ee5ng chuy\u1ec3n \u0111\u1ed5i t\u1ef1 \u0111\u1ed9ng so v\u1edbi chuy\u1ec3n \u0111\u1ed5i th\u1ee7 c\u00f4ng bao g\u1ed3m:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">1. T\u00ednh nh\u1ea5t qu\u00e1n tr\u00ean c\u00e1c thi\u1ebft b\u1ecb<\/h3>\n\n\n\n<p class=\"has-theme-palette-9-color has-text-color has-link-color wp-elements-8e3bc827d7283a50b782b06be35f6569\">REM \u0111\u1ea3m b\u1ea3o r\u1eb1ng ki\u1ec3u ch\u1eef v\u00e0 b\u1ed1 c\u1ee5c c\u1ee7a trang web c\u1ee7a b\u1ea1n \u0111\u01b0\u1ee3c c\u1ed1 \u0111\u1ecbnh b\u1ea5t k\u1ec3 \u0111\u1ed9 s\u00e2u l\u1ed3ng nhau c\u1ee7a m\u00e0n h\u00ecnh nh\u1ecf hay l\u1edbn b\u1ea5t k\u1ec3 b\u1ea1n \u0111ang xem trang web c\u00f3 m\u00e0n h\u00ecnh nh\u1ecf hay l\u1edbn.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">2. C\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng truy c\u1eadp<\/h3>\n\n\n\n<p class=\"has-theme-palette-9-color has-text-color has-link-color wp-elements-8717f40a07452264536be59030bd72c9\">V\u00ec k\u00edch th\u01b0\u1edbc ph\u00f4ng ch\u1eef m\u1eb7c \u0111\u1ecbnh \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 thi\u1ebft l\u1eadp REM, n\u00ean khi ng\u01b0\u1eddi d\u00f9ng ph\u00f3ng to ph\u00f4ng ch\u1eef m\u1eb7c \u0111\u1ecbnh c\u1ee7a m\u00ecnh \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o r\u1eb1ng h\u1ecd c\u00f3 th\u1ec3 \u0111\u1ecdc \u0111\u01b0\u1ee3c m\u00e0n h\u00ecnh, h\u1ecd v\u1eabn \u0111\u1ecdc \u0111\u01b0\u1ee3c n\u1ed9i dung r\u00f5 r\u00e0ng v\u00e0 thu nh\u1ecf.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">3. Quy tr\u00ecnh l\u00e0m vi\u1ec7c nhanh h\u01a1n<\/h3>\n\n\n\n<p class=\"has-theme-palette-9-color has-text-color has-link-color wp-elements-977668b5d3f8eba5992f7c9bc4a954a7\">Vi\u1ec7c chuy\u1ec3n \u0111\u1ed5i t\u1ee9c th\u1eddi di\u1ec5n ra nhanh ch\u00f3ng v\u00e0 gi\u1ea3m kh\u1ea3 n\u0103ng nh\u1eadp sai m\u00e3, \u0111\u1ed3ng th\u1eddi gi\u00fap b\u1ea1n c\u00f3 th\u1eddi gian thi\u1ebft k\u1ebf thay v\u00ec t\u00ednh to\u00e1n.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">4. Kh\u00f4ng c\u00f3 l\u1ed7i trong thi\u1ebft k\u1ebf v\u00e0 ph\u00e1t tri\u1ec3n.<\/h3>\n\n\n\n<p class=\"has-theme-palette-9-color has-text-color has-link-color wp-elements-690efaeb43bb91939a28e9596b42c1c3\">C\u00f4ng c\u1ee5 n\u00e0y c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng cho b\u1ea5t k\u1ef3 quy tr\u00ecnh l\u00e0m vi\u1ec7c n\u00e0o b\u1ea5t k\u1ec3 \u0111\u00f3 l\u00e0 nh\u00e0 ph\u00e1t tri\u1ec3n tham gia v\u00e0o c\u00e1c d\u1ef1 \u00e1n l\u1edbn hay ng\u01b0\u1eddi m\u1edbi b\u1eaft \u0111\u1ea7u t\u00ecm hi\u1ec3u v\u1ec1 thi\u1ebft k\u1ebf \u0111\u00e1p \u1ee9ng.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">5. Ho\u00e0n to\u00e0n mi\u1ec5n ph\u00ed v\u00e0 tr\u1ef1c tuy\u1ebfn<\/h3>\n\n\n\n<p class=\"has-theme-palette-9-color has-text-color has-link-color wp-elements-ac92de6a39ffd63d169fa2bd08449d97\">Kh\u00f4ng c\u1ea7n t\u1ea3i xu\u1ed1ng, kh\u00f4ng c\u1ea7n thi\u1ebft l\u1eadp, ch\u1ec9 c\u1ea7n s\u1eed d\u1ee5ng EM v\u00e0 nh\u1eadn chuy\u1ec3n \u0111\u1ed5i REM theo th\u1eddi gian th\u1ef1c.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">C\u00e1c tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng ph\u1ed5 bi\u1ebfn<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"has-theme-palette-9-color has-text-color has-link-color wp-elements-8f5a97d845b61a439ae96e962453d930\"><strong>Nh\u00e0 ph\u00e1t tri\u1ec3n giao di\u1ec7n ng\u01b0\u1eddi d\u00f9ng:<\/strong> \u0110\u1ec3 \u0111\u1ea3m b\u1ea3o ph\u00f4ng ch\u1eef c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ec9nh theo c\u00e1c \u1ee9ng d\u1ee5ng CSS quy m\u00f4 l\u1edbn.<\/li>\n\n\n\n<li class=\"has-theme-palette-9-color has-text-color has-link-color wp-elements-5083806abc9ec0fb827447445969c03e\"><strong>Nh\u00e0 thi\u1ebft k\u1ebf UI\/UX:<\/strong> \u0110\u1ec3 x\u00e1c minh ki\u1ec3u ch\u1eef b\u1ed1 c\u1ee5c v\u00e0 kh\u00f4ng gian c\u1ee7a b\u1ed1 c\u1ee5c \u0111\u00e1p \u1ee9ng.<\/li>\n\n\n\n<li class=\"has-theme-palette-9-color has-text-color has-link-color wp-elements-073dac940249bfcc0730ca0fadbf4ed1\"><strong>H\u1ecdc sinh v\u00e0 ng\u01b0\u1eddi h\u1ecdc:<\/strong> \u0110\u1ec3 x\u00e1c \u0111\u1ecbnh m\u1ed1i quan h\u1ec7 t\u1ed3n t\u1ea1i gi\u1eefa c\u00e1c \u0111\u01a1n v\u1ecb EM v\u00e0 REM c\u1ee7a CSS.<\/li>\n\n\n\n<li class=\"has-theme-palette-9-color has-text-color has-link-color wp-elements-f8c701f6e8d66c03abcbad5a1371a3b3\"><strong>Chuy\u00ean gia v\u1ec1 kh\u1ea3 n\u0103ng ti\u1ebfp c\u1eadn:<\/strong> Cho ph\u00e9p c\u00e1c thi\u1ebft k\u1ebf m\u1edf r\u1ed9ng theo c\u00e0i \u0111\u1eb7t ph\u00f4ng ch\u1eef c\u1ee7a ng\u01b0\u1eddi d\u00f9ng.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p (FAQ).<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">1. S\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa EM v\u00e0 REM trong CSS l\u00e0 g\u00ec?<\/h3>\n\n\n\n<p class=\"has-theme-palette-9-color has-text-color has-link-color wp-elements-1c8ec17d27b6387315013746bb41215a\">EM li&ecirc;n quan \u0111\u1ebfn k&iacute;ch th\u01b0\u1edbc ph&ocirc;ng ch\u1eef g\u1ed1c trong khi REM li&ecirc;n quan \u0111\u1ebfn k&iacute;ch th\u01b0\u1edbc ph&ocirc;ng ch\u1eef g\u1ed1c (&lt;html&gt;). REM c&oacute; t&iacute;nh d\u1ef1 \u0111o&aacute;n cao h\u01a1n v&agrave; ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 cung c\u1ea5p kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng th&ocirc;ng th\u01b0\u1eddng.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">2. T\u1ea1i sao b\u1ea1n l\u1ea1i n\u00f3i r\u1eb1ng b\u1ea1n mu\u1ed1n s\u1eed d\u1ee5ng REM ch\u1ee9 kh\u00f4ng ph\u1ea3i EM?<\/h3>\n\n\n\n<p class=\"has-theme-palette-9-color has-text-color has-link-color wp-elements-e82be7ddbbe7c7bded07a7b28cd47bb8\">Trong tr\u01b0\u1eddng h\u1ee3p REM, c\u00e1c th\u00e0nh ph\u1ea7n nh\u00fang kh\u00f4ng \u0111\u01b0\u1ee3c c\u1ed9ng d\u1ed3n l\u1ea1i v\u1edbi nhau. \u0110i\u1ec1u n\u00e0y c\u0169ng gi\u00fap \u0111\u1ea3m b\u1ea3o thi\u1ebft k\u1ebf c\u1ee7a b\u1ea1n nh\u1ea5t qu\u00e1n h\u01a1n c\u0169ng nh\u01b0 d\u1ec5 b\u1ea3o tr\u00ec h\u01a1n, \u0111\u1eb7c bi\u1ec7t l\u00e0 \u0111\u1ed1i v\u1edbi c\u00e1c d\u1ef1 \u00e1n l\u1edbn.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">3. K\u00edch th\u01b0\u1edbc chu\u1ea9n c\u1ee7a c\u01a1 s\u1edf REM m\u1eb7c \u0111\u1ecbnh c\u1ee7a h\u1ea7u h\u1ebft c\u00e1c tr\u00ecnh duy\u1ec7t l\u00e0 bao nhi\u00eau?<\/h3>\n\n\n\n<p class=\"has-theme-palette-9-color has-text-color has-link-color wp-elements-659a08f14bb7978d170201dbc7722c95\">K\u00edch th\u01b0\u1edbc ph\u00f4ng ch\u1eef m\u1eb7c \u0111\u1ecbnh trong ph\u1ea7n l\u1edbn c\u00e1c tr\u00ecnh duy\u1ec7t l\u00e0 16 x. V\u00ec v\u1eady, 1rem th\u01b0\u1eddng l\u00e0 16px tr\u1eeb khi b\u1ea1n qu\u00ean thay \u0111\u1ed5i n\u00f3 trong CSS.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">4. Li\u1ec7u \u0111\u00e2y c\u00f3 ph\u1ea3i l\u00e0 nguy\u00ean nh\u00e2n khi\u1ebfn REM chuy\u1ec3n th\u00e0nh EM kh\u00f4ng?<\/h3>\n\n\n\n<p class=\"has-theme-palette-9-color has-text-color has-link-color wp-elements-821d467419709efb37528179c91587fe\">C\u00f3! B\u1ed9 chuy\u1ec3n \u0111\u1ed5i l\u00e0 m\u1ed9t thi\u1ebft b\u1ecb hai chi\u1ec1u. Ng\u01b0\u1eddi d\u00f9ng ch\u1ec9 c\u1ea7n nh\u1eadp gi\u00e1 tr\u1ecb REM v\u00e0 n\u00f3 s\u1ebd t\u1ef1 \u0111\u1ed9ng cung c\u1ea5p gi\u00e1 tr\u1ecb EM.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">5. \u0110\u00e2y c\u00f3 ph\u1ea3i l\u00e0 ph\u1ea7n m\u1ec1m chuy\u1ec3n \u0111\u1ed5i EM sang REM mi\u1ec5n ph\u00ed kh\u00f4ng?<\/h3>\n\n\n\n<p class=\"has-theme-palette-9-color has-text-color has-link-color wp-elements-2747669cd9fada10cf4ac3abefdbf2ff\">Ho\u00e0n to\u00e0n \u0111\u00fang. ToolsMate EM to REM Converter l\u00e0 ch\u01b0\u01a1ng tr\u00ecnh mi\u1ec5n ph\u00ed kh\u00f4ng y\u00eau c\u1ea7u \u0111\u0103ng nh\u1eadp ho\u1eb7c \u0111\u0103ng k\u00fd.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Suy ngh\u0129 cu\u1ed1i c\u00f9ng<\/h2>\n\n\n\n<p class=\"has-theme-palette-9-color has-text-color has-link-color wp-elements-0ba97913da1309c6571a3256244e0981\">B\u1ed9 chuy\u1ec3n \u0111\u1ed5i EM sang REM c\u1ee7a ToolsMate l\u00e0 tr\u1ee3 th\u1ee7 \u0111\u1eafc l\u1ef1c gi\u00fap b\u1ea1n chuy\u1ec3n \u0111\u1ed5i c\u00e1c trang web th\u00e0nh d\u1ea1ng responsive, tr\u1ef1c quan v\u00e0 gi\u1ed1ng m\u00e1y t\u00ednh. \u0110\u00e2y l\u00e0 m\u1ed9t c\u00e1ch l\u00e0m vi\u1ec7c \u0111\u01a1n gi\u1ea3n, cho ph\u00e9p b\u1ea1n t\u1ea1o ra c\u00e1c thi\u1ebft k\u1ebf ki\u1ec3u ch\u1eef ho\u1eb7c t\u1ef7 l\u1ec7 m\u01b0\u1ee3t m\u00e0 tr\u00ean nhi\u1ec1u thi\u1ebft b\u1ecb kh\u00e1c nhau, gi\u00fap t\u0103ng kh\u1ea3 n\u0103ng s\u00e0ng l\u1ecdc trong thi\u1ebft k\u1ebf.<\/p>\n<\/div><\/div>\n\n\n<style>.kadence-column288_53ac74-fb > .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-column288_53ac74-fb > .kt-inside-inner-col,.kadence-column288_53ac74-fb > .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-column288_53ac74-fb > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column288_53ac74-fb > .kt-inside-inner-col{flex-direction:column;}.kadence-column288_53ac74-fb > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column288_53ac74-fb > .kt-inside-inner-col{background-color:var(--global-palette9, #ffffff);}.kadence-column288_53ac74-fb > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column288_53ac74-fb{position:relative;}@media all and (max-width: 1024px){.kadence-column288_53ac74-fb > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column288_53ac74-fb > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column288_53ac74-fb\"><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-e75c95428060c593afef25c6c3c9121b\">Th\u00eam nhi\u1ec1u chuy\u1ec3n \u0111\u1ed5i EM &amp; REM<\/h2>\n<\/div><\/div>\n\n\n<style>.kadence-column288_7ac4f4-da > .kt-inside-inner-col{display:flex;}.kadence-column288_7ac4f4-da > .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-column288_7ac4f4-da > .kt-inside-inner-col,.kadence-column288_7ac4f4-da > .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-column288_7ac4f4-da > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column288_7ac4f4-da > .kt-inside-inner-col{flex-direction:row;flex-wrap:wrap;align-items:flex-start;}.kadence-column288_7ac4f4-da > .kt-inside-inner-col > *, .kadence-column288_7ac4f4-da > .kt-inside-inner-col > figure.wp-block-image, .kadence-column288_7ac4f4-da > .kt-inside-inner-col > figure.wp-block-kadence-image{margin-top:0px;margin-bottom:0px;}.kadence-column288_7ac4f4-da > .kt-inside-inner-col > .kb-image-is-ratio-size{flex-grow:1;}.kt-row-column-wrap > .kadence-column288_7ac4f4-da{align-self:flex-start;}.kt-inner-column-height-full:not(.kt-has-1-columns) > .wp-block-kadence-column.kadence-column288_7ac4f4-da{align-self:auto;}.kt-inner-column-height-full:not(.kt-has-1-columns) > .wp-block-kadence-column.kadence-column288_7ac4f4-da > 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