[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"site-config":3,"topic:website-layout-basics":6,"blog-categories":147,"course-tree":171},{"data":4},{"google_site_verification":5,"ga4_measurement_id":5,"site_name":5,"default_og_image":5,"twitter_handle":5},null,{"data":7},{"id":8,"title":9,"slug":10,"content":11,"course":12,"subcategory":15,"author":18,"reading_time_minutes":24,"cornerstone":25,"schema_type":26,"faq_json":5,"video_url":5,"canonical_url":27,"meta_title":28,"meta_description":29,"og_image":5,"toc_json":30,"code_examples":97,"quiz":5,"exercises":122,"published_at":5,"updated_at":138,"prev":139,"next":143},122,"Website Layout Basics","website-layout-basics","\u003Ch2 id=\"website-layout-basics-build-a-complete-page-layout-with-css\">Website Layout Basics: Build a Complete Page Layout with CSS\u003C\u002Fh2>\u003Cp>\u003Cstrong>Focus keyword: website layout basics.\u003C\u002Fstrong> A website layout is the structure that organises content into header, navigation, main content, sidebar and footer. In this lesson you will combine everything from this chapter (display, position, z-index, centering and media) with flexbox and grid to build a clean, responsive, accessible page layout. All examples are live, so edit them and resize the preview.\u003C\u002Fp>\u003Ch3 id=\"trending-keywords-covered-in-this-lesson\">Trending keywords covered in this lesson\u003C\u002Fh3>\u003Cp>CSS layout tutorial, responsive web design, mobile-first CSS, CSS grid layout, grid-template-areas, flexbox navigation, holy grail layout, sticky footer, semantic HTML5 layout, max-width container, box-sizing border-box, clamp() fluid spacing, media queries, container queries, auto-fit minmax, CSS gap, logical properties, dvh, accessibility landmarks, skip link.\u003C\u002Fp>\u003Ch2 id=\"1-start-with-semantic-html\">1. Start with Semantic HTML\u003C\u002Fh2>\u003Cp>Use meaningful elements. They give structure to search engines and assistive technology (landmarks):\u003C\u002Fp>\u003Cul>\u003Cli>\u003Ccode>header\u003C\u002Fcode>: site or section heading area (logo, title).\u003C\u002Fli>\u003Cli>\u003Ccode>nav\u003C\u002Fcode>: main navigation links.\u003C\u002Fli>\u003Cli>\u003Ccode>main\u003C\u002Fcode>: the unique main content (one per page).\u003C\u002Fli>\u003Cli>\u003Ccode>article\u003C\u002Fcode> and \u003Ccode>section\u003C\u002Fcode>: self-contained content and thematic groups.\u003C\u002Fli>\u003Cli>\u003Ccode>aside\u003C\u002Fcode>: sidebar or related content.\u003C\u002Fli>\u003Cli>\u003Ccode>footer\u003C\u002Fcode>: copyright, links, contact.\u003C\u002Fli>\u003C\u002Ful>\u003Cp>Add a \u003Cstrong>skip link\u003C\u002Fstrong> at the top (\u003Ccode>a href='#main'\u003C\u002Fcode>) so keyboard users can jump past the navigation.\u003C\u002Fp>\u003Ch2 id=\"2-global-reset-for-layout\">2. Global Reset for Layout\u003C\u002Fh2>\u003Cp>Start every project with a small reset:\u003C\u002Fp>\u003Cul>\u003Cli>\u003Ccode>*, *::before, *::after { box-sizing: border-box; }\u003C\u002Fcode> so padding and border are included in width.\u003C\u002Fli>\u003Cli>\u003Ccode>body { margin: 0; }\u003C\u002Fcode>\u003C\u002Fli>\u003Cli>\u003Ccode>img, video { max-width: 100%; height: auto; display: block; }\u003C\u002Fcode>\u003C\u002Fli>\u003Cli>A readable base: \u003Ccode>font: 1rem\u002F1.6 system-ui, sans-serif;\u003C\u002Fcode>\u003C\u002Fli>\u003C\u002Ful>\u003Ch2 id=\"3-the-container-pattern\">3. The Container Pattern\u003C\u002Fh2>\u003Cp>Text that runs across a huge screen is hard to read. Limit width and center the content: \u003Ccode>.container { width: min(100% - 2rem, 1100px); margin-inline: auto; }\u003C\u002Fcode>. The \u003Ccode>min()\u003C\u002Fcode> function gives a 1rem side gap on small screens and stops at 1100px on large screens. Keep paragraphs around 60 to 75 characters wide using \u003Ccode>max-width: 65ch\u003C\u002Fcode>.\u003C\u002Fp>\u003Ch2 id=\"4-choosing-the-right-layout-tool\">4. Choosing the Right Layout Tool\u003C\u002Fh2>\u003Cul>\u003Cli>\u003Cstrong>Normal flow:\u003C\u002Fstrong> default stacking of blocks, perfect for articles.\u003C\u002Fli>\u003Cli>\u003Cstrong>Flexbox:\u003C\u002Fstrong> one dimension (rows or columns). Use for navbars, button groups, cards content and centering.\u003C\u002Fli>\u003Cli>\u003Cstrong>Grid:\u003C\u002Fstrong> two dimensions. Use for page skeletons, galleries and dashboards.\u003C\u002Fli>\u003Cli>\u003Cstrong>Position:\u003C\u002Fstrong> small adjustments, overlays, badges and sticky elements.\u003C\u002Fli>\u003Cli>\u003Cstrong>Float:\u003C\u002Fstrong> only for text wrap.\u003C\u002Fli>\u003C\u002Ful>\u003Ch2 id=\"5-page-skeleton-with-css-grid-areas\">5. Page Skeleton with CSS Grid Areas\u003C\u002Fh2>\u003Cp>Name your regions with \u003Ccode>grid-template-areas\u003C\u002Fcode> and assign them using \u003Ccode>grid-area\u003C\u002Fcode>. It is readable and easy to change for each breakpoint. A classic holy grail layout (header, sidebar, content, footer) takes only a few lines. On small screens show a single column, then on wider screens define two columns.\u003C\u002Fp>\u003Ch2 id=\"6-sticky-footer\">6. Sticky Footer\u003C\u002Fh2>\u003Cp>To keep the footer at the bottom on short pages, make the body a grid or flex column with \u003Ccode>min-height: 100dvh\u003C\u002Fcode>, and let the main area grow. With grid use \u003Ccode>grid-template-rows: auto 1fr auto\u003C\u002Fcode>. With flex use \u003Ccode>flex: 1\u003C\u002Fcode> on main.\u003C\u002Fp>\u003Ch2 id=\"7-navigation-bar-with-flexbox\">7. Navigation Bar with Flexbox\u003C\u002Fh2>\u003Cp>Use \u003Ccode>display: flex; align-items: center; gap: 1rem;\u003C\u002Fcode> on the nav list, remove bullets, and push the last item away with \u003Ccode>margin-left: auto\u003C\u002Fcode>. Wrap links on small screens with \u003Ccode>flex-wrap: wrap\u003C\u002Fcode>. Keep tap targets at least 44px tall. Make the header sticky with \u003Ccode>position: sticky; top: 0;\u003C\u002Fcode> and a z-index from your scale.\u003C\u002Fp>\u003Ch2 id=\"8-responsive-design-mobile-first\">8. Responsive Design: Mobile First\u003C\u002Fh2>\u003Cp>Write the small screen styles first and add complexity with \u003Ccode>min-width\u003C\u002Fcode> media queries. Add \u003Ccode>meta name='viewport' content='width=device-width, initial-scale=1'\u003C\u002Fcode> in the HTML head, otherwise mobile browsers zoom out and your layout will not respond. Common breakpoints: 600px (large phone), 900px (tablet), 1200px (desktop), but let your content decide when to break.\u003C\u002Fp>\u003Ch3 id=\"fluid-techniques-that-reduce-media-queries\">Fluid techniques that reduce media queries\u003C\u002Fh3>\u003Cul>\u003Cli>\u003Ccode>repeat(auto-fit, minmax(240px, 1fr))\u003C\u002Fcode> builds a card grid that wraps by itself.\u003C\u002Fli>\u003Cli>\u003Ccode>clamp(1rem, 2vw + 0.5rem, 1.5rem)\u003C\u002Fcode> creates fluid font sizes and spacing.\u003C\u002Fli>\u003Cli>\u003Ccode>flex-wrap: wrap\u003C\u002Fcode> with \u003Ccode>flex: 1 1 240px\u003C\u002Fcode> on items.\u003C\u002Fli>\u003Cli>\u003Cstrong>Container queries\u003C\u002Fstrong> (\u003Ccode>container-type: inline-size\u003C\u002Fcode> and \u003Ccode>@container\u003C\u002Fcode>) let a component adapt to its parent width instead of the viewport.\u003C\u002Fli>\u003C\u002Ful>\u003Ch2 id=\"9-spacing-system\">9. Spacing System\u003C\u002Fh2>\u003Cp>Use a consistent scale with custom properties such as \u003Ccode>--space-1: .25rem\u003C\u002Fcode>, \u003Ccode>--space-2: .5rem\u003C\u002Fcode>, \u003Ccode>--space-3: 1rem\u003C\u002Fcode>, \u003Ccode>--space-4: 2rem\u003C\u002Fcode>, \u003Ccode>--space-5: 4rem\u003C\u002Fcode>. Use \u003Ccode>gap\u003C\u002Fcode> instead of margins between siblings, and \u003Ccode>padding-block\u003C\u002Fcode> for vertical section spacing.\u003C\u002Fp>\u003Ch2 id=\"10-layout-accessibility-checklist\">10. Layout Accessibility Checklist\u003C\u002Fh2>\u003Cul>\u003Cli>Use landmarks (header, nav, main, aside, footer) and only one \u003Ccode>main\u003C\u002Fcode>.\u003C\u002Fli>\u003Cli>Keep DOM order equal to the visual order.\u003C\u002Fli>\u003Cli>Provide a visible focus style and a skip link.\u003C\u002Fli>\u003Cli>Do not disable zoom, and use rem and relative units.\u003C\u002Fli>\u003Cli>Check contrast and test with the keyboard only.\u003C\u002Fli>\u003Cli>Respect \u003Ccode>prefers-reduced-motion\u003C\u002Fcode> for animations.\u003C\u002Fli>\u003C\u002Ful>\u003Ch2 id=\"11-build-order-workflow\">11. Build Order Workflow\u003C\u002Fh2>\u003Col>\u003Cli>Write semantic HTML with no CSS and check the reading order.\u003C\u002Fli>\u003Cli>Add the reset, typography and the container.\u003C\u002Fli>\u003Cli>Build the mobile layout in a single column.\u003C\u002Fli>\u003Cli>Add the grid or flex skeleton at the first breakpoint.\u003C\u002Fli>\u003Cli>Polish components: navbar, cards, buttons and footer.\u003C\u002Fli>\u003Cli>Test on real devices, zoom and keyboard.\u003C\u002Fli>\u003C\u002Fol>\u003Ch2 id=\"12-common-mistakes\">12. Common Mistakes\u003C\u002Fh2>\u003Cul>\u003Cli>Forgetting the viewport meta tag.\u003C\u002Fli>\u003Cli>Using fixed pixel widths that overflow on phones.\u003C\u002Fli>\u003Cli>Using tables or floats for page layout.\u003C\u002Fli>\u003Cli>Nesting too many wrappers (div soup).\u003C\u002Fli>\u003Cli>Using height: 100vh for full-page sections and cutting content on mobile (use min-height with dvh).\u003C\u002Fli>\u003Cli>Adding horizontal scroll by using width: 100vw together with a vertical scrollbar.\u003C\u002Fli>\u003C\u002Ful>\u003Ch2 id=\"key-takeaways\">Key Takeaways\u003C\u002Fh2>\u003Cp>Start with semantic HTML, reset box sizing, constrain the width with a container, use grid for the page skeleton and flexbox for components, build mobile first, and rely on fluid techniques like auto-fit and clamp. Good layouts are simple, accessible and flexible.\u003C\u002Fp>\u003Cdiv class=\"try-it-yourself language-html\">\u003Cpre>\u003Ccode><style>\n  *, *::before, *::after { box-sizing: border-box; }\n  body { margin: 0; font: 16px\u002F1.6 system-ui, sans-serif; display: grid; grid-template-rows: auto 1fr auto; min-height: 100dvh; }\n  header, footer { background: #264653; color: #fff; padding: 16px; }\n  .container { width: min(100% - 2rem, 1000px); margin-inline: auto; }\n  main { padding: 24px 0; }\n  .layout { display: grid; gap: 16px; grid-template-areas: 'content' 'side'; }\n  .content { grid-area: content; background: #f1f5f9; padding: 16px; }\n  .side { grid-area: side; background: #e9c46a; padding: 16px; }\n  @media (min-width: 700px) {\n    .layout { grid-template-columns: 1fr 260px; grid-template-areas: 'content side'; }\n  }\n<\u002Fstyle>\n<header><div class='container'><strong>My Website<\u002Fstrong><\u002Fdiv><\u002Fheader>\n<main>\n  <div class='container layout'>\n    <article class='content'><h2>Main content<\u002Fh2><p>Resize the preview. Below 700px the sidebar moves under the content.<\u002Fp><\u002Farticle>\n    <aside class='side'><h3>Sidebar<\u002Fh3><p>Related links<\u002Fp><\u002Faside>\n  <\u002Fdiv>\n<\u002Fmain>\n<footer><div class='container'>Sticky footer, always at the bottom<\u002Fdiv><\u002Ffooter>\u003C\u002Fcode>\u003C\u002Fpre>\u003C\u002Fdiv>\u003Cdiv class=\"try-it-yourself language-html\">\u003Cpre>\u003Ccode><style>\n  *, *::before, *::after { box-sizing: border-box; }\n  body { margin: 0; font: 16px system-ui, sans-serif; min-height: 200px; }\n  .skip { position: absolute; left: -999px; top: 0; background: #ffb703; padding: 8px 12px; }\n  .skip:focus { left: 8px; top: 8px; z-index: 1000; }\n  .header { position: sticky; top: 0; z-index: 200; background: #0b2545; color: #fff; }\n  .nav { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 20px; padding: 12px 16px; }\n  .nav .logo { font-weight: 800; font-size: 20px; }\n  .nav a { color: #fff; text-decoration: none; padding: 10px 4px; min-height: 44px; }\n  .nav a:hover, .nav a:focus-visible { text-decoration: underline; text-underline-offset: .25em; }\n  .nav .push { margin-left: auto; background: #13a89e; padding: 10px 18px; border-radius: 999px; }\n<\u002Fstyle>\n<a class='skip' href='#main'>Skip to content<\u002Fa>\n<header class='header'>\n  <nav class='nav' aria-label='Main'>\n    <span class='logo'>Brand<\u002Fspan>\n    <a href='#'>Home<\u002Fa><a href='#'>Courses<\u002Fa><a href='#'>Blog<\u002Fa>\n    <a class='push' href='#'>Sign in<\u002Fa>\n  <\u002Fnav>\n<\u002Fheader>\n<main id='main' style='padding:16px'>Press Tab to reveal the skip link. Resize to see the nav wrap.<\u002Fmain>\u003C\u002Fcode>\u003C\u002Fpre>\u003C\u002Fdiv>\u003Cdiv class=\"try-it-yourself language-html\">\u003Cpre>\u003Ccode><style>\n  *, *::before, *::after { box-sizing: border-box; }\n  body { margin: 0; font: 16px system-ui, sans-serif; padding: 16px; }\n  .cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px; }\n  .card { border: 1px solid #d0d7de; border-radius: 12px; padding: 16px; background: #fff; box-shadow: 0 2px 8px rgba(0,0,0,.06); }\n  .card h3 { margin-top: 0; font-size: clamp(1.1rem, 1vw + 0.9rem, 1.5rem); }\n<\u002Fstyle>\n<div class='cards'>\n  <article class='card'><h3>HTML<\u002Fh3><p>Structure of every page.<\u002Fp><\u002Farticle>\n  <article class='card'><h3>CSS<\u002Fh3><p>Design and layout.<\u002Fp><\u002Farticle>\n  <article class='card'><h3>JavaScript<\u002Fh3><p>Interactivity.<\u002Fp><\u002Farticle>\n  <article class='card'><h3>Accessibility<\u002Fh3><p>Usable by everyone.<\u002Fp><\u002Farticle>\n<\u002Fdiv>\u003C\u002Fcode>\u003C\u002Fpre>\u003C\u002Fdiv>\u003Cdiv class=\"try-it-yourself language-html\">\u003Cpre>\u003Ccode><style>\n  *, *::before, *::after { box-sizing: border-box; }\n  body { margin: 0; font: 16px system-ui, sans-serif; display: flex; flex-direction: column; min-height: 100dvh; }\n  header { background: #264653; color: #fff; padding: 16px; }\n  main { flex: 1; padding: 16px; }\n  footer { background: #111; color: #fff; padding: 16px; text-align: center; }\n<\u002Fstyle>\n<header>Header<\u002Fheader>\n<main>Short content. The footer still sticks to the bottom because main uses flex: 1.<\u002Fmain>\n<footer>Footer<\u002Ffooter>\u003C\u002Fcode>\u003C\u002Fpre>\u003C\u002Fdiv>\u003Cdiv class=\"try-it-yourself language-html\">\u003Cpre>\u003Ccode><style>\n  *, *::before, *::after { box-sizing: border-box; }\n  body { margin: 0; font: 16px system-ui, sans-serif; padding: 16px; }\n  .wrap { container-type: inline-size; resize: horizontal; overflow: auto; border: 2px dashed #888; padding: 12px; max-width: 100%; }\n  .product { display: grid; gap: 12px; padding: 12px; background: #f1f5f9; border-radius: 12px; }\n  .thumb { background: #219ebc; aspect-ratio: 4 \u002F 3; border-radius: 8px; }\n  @container (min-width: 480px) {\n    .product { grid-template-columns: 180px 1fr; align-items: center; }\n  }\n<\u002Fstyle>\n<p>Drag the bottom right corner of the dashed box to resize it:<\u002Fp>\n<div class='wrap'>\n  <div class='product'><div class='thumb'><\u002Fdiv><div><h3>Container query card<\u002Fh3><p>This card changes layout based on its parent width, not the screen width.<\u002Fp><\u002Fdiv><\u002Fdiv>\n<\u002Fdiv>\u003C\u002Fcode>\u003C\u002Fpre>\u003C\u002Fdiv>\u003Cdiv class=\"try-it-yourself language-html\">\u003Cpre>\u003Ccode><style>\n  :root {\n    --space-1: .25rem; --space-2: .5rem; --space-3: 1rem; --space-4: 2rem; --space-5: 4rem;\n    --brand: #0b5fff;\n  }\n  *, *::before, *::after { box-sizing: border-box; }\n  body { margin: 0; font: 1rem\u002F1.6 system-ui, sans-serif; }\n  .section { padding-block: var(--space-5); }\n  .container { width: min(100% - 2rem, 960px); margin-inline: auto; }\n  .hero { background: linear-gradient(135deg, #e0ecff, #ffffff); text-align: center; }\n  .hero h1 { font-size: clamp(2rem, 4vw + 1rem, 3.5rem); margin: 0 0 var(--space-3); }\n  .hero p { max-width: 60ch; margin-inline: auto; }\n  .btn { display: inline-block; margin-top: var(--space-3); padding: var(--space-2) var(--space-4); background: var(--brand); color: #fff; border-radius: 999px; text-decoration: none; }\n<\u002Fstyle>\n<section class='section hero'>\n  <div class='container'>\n    <h1>Build modern layouts<\u002Fh1>\n    <p>Fluid type, a spacing scale and a centered container give you a solid base for every website.<\u002Fp>\n    <a class='btn' href='#'>Start learning<\u002Fa>\n  <\u002Fdiv>\n<\u002Fsection>\u003C\u002Fcode>\u003C\u002Fpre>\u003C\u002Fdiv>\u003Cdiv class=\"try-it-yourself language-javascript\">\u003Cpre>\u003Ccode>const layoutChecklist = [\n  'Semantic HTML landmarks',\n  'Viewport meta tag',\n  'box-sizing: border-box reset',\n  'Container with max-width',\n  'Grid for page skeleton',\n  'Flexbox for components',\n  'Mobile first media queries',\n  'Visible focus and skip link'\n];\n\nlayoutChecklist.forEach(function (item, index) {\n  console.log('[ ] ' + (index + 1) + '. ' + item);\n});\u003C\u002Fcode>\u003C\u002Fpre>\u003C\u002Fdiv>",{"name":13,"slug":14},"CSS","css",{"name":16,"slug":17},"Display, Position & Layout Basics","display-position-layout-basics",{"slug":19,"display_name":20,"job_title":5,"short_bio":5,"expertise_tags":21,"headshot":5,"long_bio":5,"credentials":5,"twitter_url":5,"linkedin_url":5,"github_url":5,"personal_website_url":5,"other_sameas_urls":5,"topics":22,"posts":23},"badar-khalil","Badar Khalil",[],[],[],8,false,"Article","https:\u002F\u002Fwpfsharp.com\u002Ftopics\u002Fwebsite-layout-basics","Website Layout Basics: Header, Grid, Flexbox & Responsive","Learn website layout basics with CSS: semantic HTML, header, nav, main, sidebar, footer, grid areas, sticky footer, container width, responsive design and best practices.",[31,41,45,49,53,57,61,65,69,77,81,85,89,93],{"id":32,"text":33,"level":34,"children":35},"website-layout-basics-build-a-complete-page-layout-with-css","Website Layout Basics: Build a Complete Page Layout with CSS",2,[36],{"id":37,"text":38,"level":39,"children":40},"trending-keywords-covered-in-this-lesson","Trending keywords covered in this lesson",3,[],{"id":42,"text":43,"level":34,"children":44},"1-start-with-semantic-html","1. Start with Semantic HTML",[],{"id":46,"text":47,"level":34,"children":48},"2-global-reset-for-layout","2. Global Reset for Layout",[],{"id":50,"text":51,"level":34,"children":52},"3-the-container-pattern","3. The Container Pattern",[],{"id":54,"text":55,"level":34,"children":56},"4-choosing-the-right-layout-tool","4. Choosing the Right Layout Tool",[],{"id":58,"text":59,"level":34,"children":60},"5-page-skeleton-with-css-grid-areas","5. Page Skeleton with CSS Grid Areas",[],{"id":62,"text":63,"level":34,"children":64},"6-sticky-footer","6. Sticky Footer",[],{"id":66,"text":67,"level":34,"children":68},"7-navigation-bar-with-flexbox","7. Navigation Bar with Flexbox",[],{"id":70,"text":71,"level":34,"children":72},"8-responsive-design-mobile-first","8. Responsive Design: Mobile First",[73],{"id":74,"text":75,"level":39,"children":76},"fluid-techniques-that-reduce-media-queries","Fluid techniques that reduce media queries",[],{"id":78,"text":79,"level":34,"children":80},"9-spacing-system","9. Spacing System",[],{"id":82,"text":83,"level":34,"children":84},"10-layout-accessibility-checklist","10. Layout Accessibility Checklist",[],{"id":86,"text":87,"level":34,"children":88},"11-build-order-workflow","11. Build Order Workflow",[],{"id":90,"text":91,"level":34,"children":92},"12-common-mistakes","12. Common Mistakes",[],{"id":94,"text":95,"level":34,"children":96},"key-takeaways","Key Takeaways",[],[98,103,106,109,112,115,118],{"id":99,"language":100,"code":101,"is_editable":102},439,"html","\u003Cstyle>\n  *, *::before, *::after { box-sizing: border-box; }\n  body { margin: 0; font: 16px\u002F1.6 system-ui, sans-serif; display: grid; grid-template-rows: auto 1fr auto; min-height: 100dvh; }\n  header, footer { background: #264653; color: #fff; padding: 16px; }\n  .container { width: min(100% - 2rem, 1000px); margin-inline: auto; }\n  main { padding: 24px 0; }\n  .layout { display: grid; gap: 16px; grid-template-areas: 'content' 'side'; }\n  .content { grid-area: content; background: #f1f5f9; padding: 16px; }\n  .side { grid-area: side; background: #e9c46a; padding: 16px; }\n  @media (min-width: 700px) {\n    .layout { grid-template-columns: 1fr 260px; grid-template-areas: 'content side'; }\n  }\n\u003C\u002Fstyle>\n\u003Cheader>\u003Cdiv class='container'>\u003Cstrong>My Website\u003C\u002Fstrong>\u003C\u002Fdiv>\u003C\u002Fheader>\n\u003Cmain>\n  \u003Cdiv class='container layout'>\n    \u003Carticle class='content'>\u003Ch2>Main content\u003C\u002Fh2>\u003Cp>Resize the preview. 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Resize to see the nav wrap.\u003C\u002Fmain>",{"id":107,"language":100,"code":108,"is_editable":102},441,"\u003Cstyle>\n  *, *::before, *::after { box-sizing: border-box; }\n  body { margin: 0; font: 16px system-ui, sans-serif; padding: 16px; }\n  .cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px; }\n  .card { border: 1px solid #d0d7de; border-radius: 12px; padding: 16px; background: #fff; box-shadow: 0 2px 8px rgba(0,0,0,.06); }\n  .card h3 { margin-top: 0; font-size: clamp(1.1rem, 1vw + 0.9rem, 1.5rem); }\n\u003C\u002Fstyle>\n\u003Cdiv class='cards'>\n  \u003Carticle class='card'>\u003Ch3>HTML\u003C\u002Fh3>\u003Cp>Structure of every page.\u003C\u002Fp>\u003C\u002Farticle>\n  \u003Carticle class='card'>\u003Ch3>CSS\u003C\u002Fh3>\u003Cp>Design and layout.\u003C\u002Fp>\u003C\u002Farticle>\n  \u003Carticle class='card'>\u003Ch3>JavaScript\u003C\u002Fh3>\u003Cp>Interactivity.\u003C\u002Fp>\u003C\u002Farticle>\n  \u003Carticle class='card'>\u003Ch3>Accessibility\u003C\u002Fh3>\u003Cp>Usable by everyone.\u003C\u002Fp>\u003C\u002Farticle>\n\u003C\u002Fdiv>",{"id":110,"language":100,"code":111,"is_editable":102},442,"\u003Cstyle>\n  *, *::before, *::after { box-sizing: border-box; }\n  body { margin: 0; font: 16px system-ui, sans-serif; display: flex; flex-direction: column; min-height: 100dvh; }\n  header { background: #264653; color: #fff; padding: 16px; }\n  main { flex: 1; padding: 16px; }\n  footer { background: #111; color: #fff; padding: 16px; text-align: center; }\n\u003C\u002Fstyle>\n\u003Cheader>Header\u003C\u002Fheader>\n\u003Cmain>Short content. 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