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Code Style - HTML/CSSs

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Updated: 4 May, 2026

Quy tắc viết code HTML/CSS

code style html css

Prompt Structure (Content)

Khi viết HTML/CSS, tuân thủ các quy tắc sau: **HTML:** - Sử dụng semantic tags: header, nav, main, section, article, footer - Indent 2 spaces - Attributes theo thứ tự: id, class, data-*, src/href, alt/title - Luôn có alt cho images **CSS:** - Mobile-first approach - Sử dụng CSS variables cho colors, fonts - BEM naming convention khi phù hợp - Flexbox/Grid cho layout - Tránh !important **Responsive breakpoints:** - Mobile: < 640px - Tablet: 640px - 1024px - Desktop: > 1024px

Sample Result (HTML Example)

<div class="app-sidebar-footer dropdown" style="padding:0;background:#000;"> <a href="#" class="dropdown-toggle dropdown-toggle-simple" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false" style="margin: 0; padding: 0!important;"> <span style="position: absolute; right: 5px; top: 5px;display: inline-block; background: linear-gradient(45deg, #9E1030, #ff5c80); color: #FFE77A; border-radius: 8px; padding: 1px 5px; font-size: 9px; font-weight: 700; margin-left: 5px; box-shadow: 0 2px 10px rgba(158, 16, 48, 0.25); white-space: nowrap;"> <svg class="svg-inline--fa fa-crown" style="margin-right: 2px; font-size: 7px;" aria-hidden="true" focusable="false" data-prefix="fas" data-icon="crown" role="img" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 576 512" data-fa-i2svg=""> <path fill="currentColor" d="M309 106c11.4-7 19-19.7 19-34c0-22.1-17.9-40-40-40s-40 17.9-40 40c0 14.4 7.6 27 19 34L209.7 220.6c-9.1 18.2-32.7 23.4-48.6 10.7L72 160c5-6.7 8-15 8-24c0-22.1-17.9-40-40-40S0 113.9 0 136s17.9 40 40 40c.2 0 .5 0 .7 0L86.4 427.4c5.5 30.4 32 52.6 63 52.6H426.6c30.9 0 57.4-22.1 63-52.6L535.3 176c.2 0 .5 0 .7 0c22.1 0 40-17.9 40-40s-17.9-40-40-40s-40 17.9-40 40c0 9 3 17.3 8 24l-89.1 71.3c-15.9 12.7-39.5 7.5-48.6-10.7L309 106z"> </path> </svg><span class="">PRO</span> </span> <div class="d-flex align-items-center app-sidebar-footer-block"> <img src="https://appifio.com/uploads/avatars/a0c93bd29717ab63c92cc7bdcc231212.jpg?t=1777298720" class="app-sidebar-avatar mr-3" loading="lazy"> <div class="app-sidebar-footer-text d-flex flex-column text-truncate"> <span class="text-truncate d-flex align-items-center"> Appifio </span> <small class="text-truncate">thpglory@gmail.com</small> </div> </div> </a> <div id="menu-sidebar-s" class="dropdown-menu dropdown-menu-right" style="background-color: #000000cf;"> <a class="dropdown-item" style="color: #ffffff;" href="https://appifio.com/admin"><svg class="svg-inline--fa fa-fingerprint" style="margin-right: 10px; color: #fff!important;" aria-hidden="true" focusable="false" data-prefix="fas" data-icon="fingerprint" role="img" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512" data-fa-i2svg=""><path fill="currentColor" d="M48 256C48 141.1 141.1 48 256 48c63.1 0 119.6 28.1 157.8 72.5c8.6 10.1 23.8 11.2 33.8 2.6s11.2-23.8 2.6-33.8C403.3 34.6 333.7 0 256 0C114.6 0 0 114.6 0 256v40c0 13.3 10.7 24 24 24s24-10.7 24-24V256zm458.5-52.9c-2.7-13-15.5-21.3-28.4-18.5s-21.3 15.5-18.5 28.4c2.9 13.9 4.5 28.3 4.5 43.1v40c0 13.3 10.7 24 24 24s24-10.7 24-24V256c0-18.1-1.9-35.8-5.5-52.9zM256 80c-19 0-37.4 3-54.5 8.6c-15.2 5-18.7 23.7-8.3 35.9c7.1 8.3 18.8 10.8 29.4 7.9c10.6-2.9 21.8-4.4 33.4-4.4c70.7 0 128 57.3 128 128v24.9c0 25.2-1.5 50.3-4.4 75.3c-1.7 14.6 9.4 27.8 24.2 27.8c11.8 0 21.9-8.6 23.3-20.3c3.3-27.4 5-55 5-82.7V256c0-97.2-78.8-176-176-176zM150.7 148.7c-9.1-10.6-25.3-11.4-33.9-.4C93.7 178 80 215.4 80 256v24.9c0 24.2-2.6 48.4-7.8 71.9C68.8 368.4 80.1 384 96.1 384c10.5 0 19.9-7 22.2-17.3c6.4-28.1 9.7-56.8 9.7-85.8V256c0-27.2 8.5-52.4 22.9-73.1c7.2-10.4 8-24.6-.2-34.2zM256 160c-53 0-96 43-96 96v24.9c0 35.9-4.6 71.5-13.8 106.1c-3.8 14.3 6.7 29 21.5 29c9.5 0 17.9-6.2 20.4-15.4c10.5-39 15.9-79.2 15.9-119.7V256c0-28.7 23.3-52 52-52s52 23.3 52 52v24.9c0 36.3-3.5 72.4-10.4 107.9c-2.7 13.9 7.7 27.2 21.8 27.2c10.2 0 19-7 21-17c7.7-38.8 11.6-78.3 11.6-118.1V256c0-53-43-96-96-96zm24 96c0-13.3-10.7-24-24-24s-24 10.7-24 24v24.9c0 59.9-11 119.3-32.5 175.2l-5.9 15.3c-4.8 12.4 1.4 26.3 13.8 31s26.3-1.4 31-13.8l5.9-15.3C267.9 411.9 280 346.7 280 280.9V256z"></path></svg> Admin</a> <div class="dropdown-divider"></div> <a style="color: #ffffff;" class="dropdown-item " href="https://appifio.com/account"><svg class="svg-inline--fa fa-wrench" style="margin-right: 10px; color: #fff!important;" aria-hidden="true" focusable="false" data-prefix="fas" data-icon="wrench" role="img" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512" data-fa-i2svg=""><path fill="currentColor" d="M352 320c88.4 0 160-71.6 160-160c0-15.3-2.2-30.1-6.2-44.2c-3.1-10.8-16.4-13.2-24.3-5.3l-76.8 76.8c-3 3-7.1 4.7-11.3 4.7H336c-8.8 0-16-7.2-16-16V118.6c0-4.2 1.7-8.3 4.7-11.3l76.8-76.8c7.9-7.9 5.4-21.2-5.3-24.3C382.1 2.2 367.3 0 352 0C263.6 0 192 71.6 192 160c0 19.1 3.4 37.5 9.5 54.5L19.9 396.1C7.2 408.8 0 426.1 0 444.1C0 481.6 30.4 512 67.9 512c18 0 35.3-7.2 48-19.9L297.5 310.5c17 6.2 35.4 9.5 54.5 9.5zM80 408a24 24 0 1 1 0 48 24 24 0 1 1 0-48z"></path></svg> Account</a> <a style="color: #ffffff;" class="dropdown-item " href="https://appifio.com/account-plan"><svg class="svg-inline--fa fa-box-open" style="margin-right: 10px; color: #fff!important;" aria-hidden="true" focusable="false" data-prefix="fas" data-icon="box-open" role="img" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 640 512" data-fa-i2svg=""><path fill="currentColor" d="M58.9 42.1c3-6.1 9.6-9.6 16.3-8.7L320 64 564.8 33.4c6.7-.8 13.3 2.7 16.3 8.7l41.7 83.4c9 17.9-.6 39.6-19.8 45.1L439.6 217.3c-13.9 4-28.8-1.9-36.2-14.3L320 64 236.6 203c-7.4 12.4-22.3 18.3-36.2 14.3L37.1 170.6c-19.3-5.5-28.8-27.2-19.8-45.1L58.9 42.1zM321.1 128l54.9 91.4c14.9 24.8 44.6 36.6 72.5 28.6L576 211.6v167c0 22-15 41.2-36.4 46.6l-204.1 51c-10.2 2.6-20.9 2.6-31 0l-204.1-51C79 419.7 64 400.5 64 378.5v-167L191.6 248c27.8 8 57.6-3.8 72.5-28.6L318.9 128h2.2z"></path></svg> Plan</a> <a style="color: #ffffff;" class="dropdown-item " href="https://appifio.com/account-payments"><svg class="svg-inline--fa fa-credit-card" style="margin-right: 10px; color: #fff!important;" aria-hidden="true" focusable="false" data-prefix="fas" data-icon="credit-card" role="img" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 576 512" data-fa-i2svg=""><path fill="currentColor" d="M64 32C28.7 32 0 60.7 0 96v32H576V96c0-35.3-28.7-64-64-64H64zM576 224H0V416c0 35.3 28.7 64 64 64H512c35.3 0 64-28.7 64-64V224zM112 352h64c8.8 0 16 7.2 16 16s-7.2 16-16 16H112c-8.8 0-16-7.2-16-16s7.2-16 16-16zm112 16c0-8.8 7.2-16 16-16H368c8.8 0 16 7.2 16 16s-7.2 16-16 16H240c-8.8 0-16-7.2-16-16z"></path></svg> Payments</a> <a style="color: #ffffff;" class="dropdown-item " href="https://appifio.com/referrals"><svg class="svg-inline--fa fa-wallet" style="margin-right: 10px; color: #fff!important;" aria-hidden="true" focusable="false" data-prefix="fas" data-icon="wallet" role="img" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512" data-fa-i2svg=""><path fill="currentColor" d="M64 32C28.7 32 0 60.7 0 96V416c0 35.3 28.7 64 64 64H448c35.3 0 64-28.7 64-64V192c0-35.3-28.7-64-64-64H80c-8.8 0-16-7.2-16-16s7.2-16 16-16H448c17.7 0 32-14.3 32-32s-14.3-32-32-32H64zM416 272a32 32 0 1 1 0 64 32 32 0 1 1 0-64z"></path></svg> Referrals</a> <a style="color: #ffffff;" class="dropdown-item " href="https://appifio.com/teams-system"><svg class="svg-inline--fa fa-user-shield" style="margin-right: 10px; color: #fff!important;" aria-hidden="true" focusable="false" data-prefix="fas" data-icon="user-shield" role="img" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 640 512" data-fa-i2svg=""><path fill="currentColor" d="M224 256A128 128 0 1 0 224 0a128 128 0 1 0 0 256zm-45.7 48C79.8 304 0 383.8 0 482.3C0 498.7 13.3 512 29.7 512H418.3c1.8 0 3.5-.2 5.3-.5c-76.3-55.1-99.8-141-103.1-200.2c-16.1-4.8-33.1-7.3-50.7-7.3H178.3zm308.8-78.3l-120 48C358 277.4 352 286.2 352 296c0 63.3 25.9 168.8 134.8 214.2c5.9 2.5 12.6 2.5 18.5 0C614.1 464.8 640 359.3 640 296c0-9.8-6-18.6-15.1-22.3l-120-48c-5.7-2.3-12.1-2.3-17.8 0zM591.4 312c-3.9 50.7-27.2 116.7-95.4 149.7V273.8L591.4 312z"></path></svg> Teams system</a> <a style="color: #ffffff;" class="dropdown-item" href="https://appifio.com/logout"><svg class="svg-inline--fa fa-right-from-bracket" style="margin-right: 10px; color: #fff;" aria-hidden="true" focusable="false" data-prefix="fas" data-icon="right-from-bracket" role="img" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512" data-fa-i2svg=""><path fill="currentColor" d="M377.9 105.9L500.7 228.7c7.2 7.2 11.3 17.1 11.3 27.3s-4.1 20.1-11.3 27.3L377.9 406.1c-6.4 6.4-15 9.9-24 9.9c-18.7 0-33.9-15.2-33.9-33.9l0-62.1-128 0c-17.7 0-32-14.3-32-32l0-64c0-17.7 14.3-32 32-32l128 0 0-62.1c0-18.7 15.2-33.9 33.9-33.9c9 0 17.6 3.6 24 9.9zM160 96L96 96c-17.7 0-32 14.3-32 32l0 256c0 17.7 14.3 32 32 32l64 0c17.7 0 32 14.3 32 32s-14.3 32-32 32l-64 0c-53 0-96-43-96-96L0 128C0 75 43 32 96 32l64 0c17.7 0 32 14.3 32 32s-14.3 32-32 32z"></path></svg> Logout</a> </div> </div>