{"id":54238,"date":"2026-06-01T03:00:00","date_gmt":"2026-06-01T10:00:00","guid":{"rendered":"https:\/\/www.uxpin.com\/studio\/?p=54238"},"modified":"2026-06-01T07:00:31","modified_gmt":"2026-06-01T14:00:31","slug":"html-vs-css","status":"publish","type":"post","link":"https:\/\/www.uxpin.com\/studio\/blog\/html-vs-css\/","title":{"rendered":"HTML vs CSS: What&#8217;s the Difference? Code Examples &#038; Key Comparisons (2026)"},"content":{"rendered":"<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"512\" class=\"wp-image-54675\" src=\"https:\/\/www.uxpin.com\/studio\/wp-content\/uploads\/2024\/08\/HTML-vs-CSS-1024x512.webp\" alt=\"HTML vs CSS \u2014 key differences explained with code examples\" srcset=\"https:\/\/www.uxpin.com\/studio\/wp-content\/uploads\/2024\/08\/HTML-vs-CSS-1024x512.webp 1024w, https:\/\/www.uxpin.com\/studio\/wp-content\/uploads\/2024\/08\/HTML-vs-CSS-600x300.webp 600w, https:\/\/www.uxpin.com\/studio\/wp-content\/uploads\/2024\/08\/HTML-vs-CSS-768x384.webp 768w, https:\/\/www.uxpin.com\/studio\/wp-content\/uploads\/2024\/08\/HTML-vs-CSS.webp 1200w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<p><strong>HTML<\/strong> (HyperText Markup Language) defines the structure and content of every web page \u2014 headings, paragraphs, images, links, and forms. <strong>CSS<\/strong> (Cascading Style Sheets) controls how that content looks and responds \u2014 colours, typography, layout, spacing, animations, and responsive behaviour. The simplest way to remember it: <strong>HTML is what&#8217;s on the page; CSS is how it looks.<\/strong><\/p>\n<p>Every website on the internet is built with both. HTML without CSS produces a plain, unstyled document. CSS without HTML has nothing to style. Understanding the relationship between them is the foundation of modern web development \u2014 and it matters just as much for designers who want to create interfaces that translate cleanly into production code.<\/p>\n<hr \/>\n<h2 id=\"what-is-html\">What Is HTML?<\/h2>\n<p>HTML is a <strong>markup language<\/strong>, not a programming language. It uses elements (written as tags in angle brackets) to describe the structure of content so browsers know how to display it. Tags usually come in pairs \u2014 an opening tag and a closing tag.<\/p>\n<pre><code class=\"language-html\">&lt;!DOCTYPE html&gt;\n&lt;html lang=\"en\"&gt;\n  &lt;head&gt;\n    &lt;meta charset=\"UTF-8\"&gt;\n    &lt;title&gt;My Page&lt;\/title&gt;\n  &lt;\/head&gt;\n  &lt;body&gt;\n    &lt;h1&gt;Hello, World&lt;\/h1&gt;\n    &lt;p&gt;This is a paragraph.&lt;\/p&gt;\n    &lt;a href=\"https:\/\/example.com\"&gt;This is a link&lt;\/a&gt;\n  &lt;\/body&gt;\n&lt;\/html&gt;\n<\/code><\/pre>\n<p>The <code>&lt;h1&gt;<\/code> tells the browser &#8220;this is the most important heading.&#8221; The <code>&lt;p&gt;<\/code> means paragraph. The <code>&lt;a&gt;<\/code> creates a hyperlink. HTML is purely descriptive \u2014 it defines what things <em>are<\/em>, not what they <em>look like<\/em>.<\/p>\n<h3 id=\"semantic-html\">Semantic HTML<\/h3>\n<p>Modern HTML5 includes <strong>semantic elements<\/strong> that describe the purpose of content, not just its position on the page. Using them correctly is essential for accessibility and SEO:<\/p>\n<pre><code class=\"language-html\">&lt;header&gt;Site navigation goes here&lt;\/header&gt;\n&lt;main&gt;\n  &lt;article&gt;\n    &lt;h1&gt;Article title&lt;\/h1&gt;\n    &lt;p&gt;Content here&lt;\/p&gt;\n  &lt;\/article&gt;\n  &lt;aside&gt;Related links&lt;\/aside&gt;\n&lt;\/main&gt;\n&lt;footer&gt;Copyright information&lt;\/footer&gt;\n<\/code><\/pre>\n<p>Elements like <code>&lt;header&gt;<\/code>, <code>&lt;main&gt;<\/code>, <code>&lt;article&gt;<\/code>, <code>&lt;aside&gt;<\/code>, and <code>&lt;footer&gt;<\/code> tell screen readers and search engines what each region of the page does. A <code>&lt;div&gt;<\/code> with identical content gives them no meaningful information. Search engines weight semantic structure when indexing pages \u2014 it&#8217;s a direct SEO and accessibility signal.<\/p>\n<h3 id=\"common-html-elements\">Common HTML Elements at a Glance<\/h3>\n<table>\n<thead>\n<tr>\n<th>Element<\/th>\n<th>Purpose<\/th>\n<th>Example<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><code>&lt;h1&gt;<\/code>\u2013<code>&lt;h6&gt;<\/code><\/td>\n<td>Headings (hierarchy)<\/td>\n<td><code>&lt;h2&gt;Section title&lt;\/h2&gt;<\/code><\/td>\n<\/tr>\n<tr>\n<td><code>&lt;p&gt;<\/code><\/td>\n<td>Paragraph text<\/td>\n<td><code>&lt;p&gt;Body text here.&lt;\/p&gt;<\/code><\/td>\n<\/tr>\n<tr>\n<td><code>&lt;a&gt;<\/code><\/td>\n<td>Hyperlink<\/td>\n<td><code>&lt;a href=\"\/about\"&gt;About&lt;\/a&gt;<\/code><\/td>\n<\/tr>\n<tr>\n<td><code>&lt;img&gt;<\/code><\/td>\n<td>Image<\/td>\n<td><code>&lt;img src=\"photo.webp\" alt=\"Description\"&gt;<\/code><\/td>\n<\/tr>\n<tr>\n<td><code>&lt;ul&gt;<\/code> \/ <code>&lt;ol&gt;<\/code><\/td>\n<td>Unordered \/ ordered list<\/td>\n<td><code>&lt;ul&gt;&lt;li&gt;Item&lt;\/li&gt;&lt;\/ul&gt;<\/code><\/td>\n<\/tr>\n<tr>\n<td><code>&lt;form&gt;<\/code><\/td>\n<td>User input form<\/td>\n<td><code>&lt;form action=\"\/submit\"&gt;...&lt;\/form&gt;<\/code><\/td>\n<\/tr>\n<tr>\n<td><code>&lt;table&gt;<\/code><\/td>\n<td>Tabular data<\/td>\n<td><code>&lt;table&gt;&lt;tr&gt;&lt;td&gt;Cell&lt;\/td&gt;&lt;\/tr&gt;&lt;\/table&gt;<\/code><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<hr \/>\n<h2 id=\"what-is-css\">What Is CSS?<\/h2>\n<p>CSS is a <strong>style sheet language<\/strong>. It selects HTML elements and applies visual rules to them. A CSS rule has two parts: a <strong>selector<\/strong> (which element to target) and a <strong>declaration block<\/strong> (what styles to apply).<\/p>\n<pre><code class=\"language-css\">\/* Target all h1 elements *\/\nh1 {\n  font-size: 2rem;\n  color: #1a1a2e;\n  font-weight: 700;\n}\n\n\/* Target elements with class=\"card\" *\/\n.card {\n  background: white;\n  border-radius: 8px;\n  padding: 24px;\n  box-shadow: 0 2px 8px rgba(0,0,0,0.1);\n}\n\n\/* Target the element with id=\"nav\" *\/\n#nav {\n  display: flex;\n  gap: 16px;\n  align-items: center;\n}\n<\/code><\/pre>\n<h3 id=\"three-ways-to-apply-css\">Three Ways to Apply CSS<\/h3>\n<ul>\n<li><strong>External stylesheet<\/strong> \u2014 a separate <code>.css<\/code> file linked with <code>&lt;link rel=\"stylesheet\" href=\"styles.css\"&gt;<\/code>. Best practice for production projects.<\/li>\n<li><strong>Internal stylesheet<\/strong> \u2014 inside a <code>&lt;style&gt;<\/code> tag in the HTML <code>&lt;head&gt;<\/code>. Useful for single-page prototypes or critical CSS inlining.<\/li>\n<li><strong>Inline styles<\/strong> \u2014 directly on an element with the <code>style=\"\"<\/code> attribute. Avoid for anything you&#8217;ll need to maintain or scale.<\/li>\n<\/ul>\n<p>External stylesheets are the standard in production. One change updates every page that references the file.<\/p>\n<hr \/>\n<h2 id=\"html-vs-css-key-differences\">HTML vs CSS: The 5 Key Differences<\/h2>\n<table>\n<thead>\n<tr>\n<th>Criteria<\/th>\n<th>HTML<\/th>\n<th>CSS<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>Role<\/strong><\/td>\n<td>Defines content and structure<\/td>\n<td>Controls visual presentation and layout<\/td>\n<\/tr>\n<tr>\n<td><strong>Syntax<\/strong><\/td>\n<td>Tags: <code>&lt;h1&gt;<\/code>, <code>&lt;p&gt;<\/code>, <code>&lt;div&gt;<\/code><\/td>\n<td>Rules: <code>selector { property: value; }<\/code><\/td>\n<\/tr>\n<tr>\n<td><strong>Can it work alone?<\/strong><\/td>\n<td>Yes \u2014 unstyled but functional<\/td>\n<td>No \u2014 needs HTML elements to target<\/td>\n<\/tr>\n<tr>\n<td><strong>SEO impact<\/strong><\/td>\n<td>Direct \u2014 semantic structure is indexed<\/td>\n<td>Indirect \u2014 via Core Web Vitals and mobile-friendliness<\/td>\n<\/tr>\n<tr>\n<td><strong>File type<\/strong><\/td>\n<td><code>.html<\/code> files<\/td>\n<td><code>.css<\/code> files (or <code>&lt;style&gt;<\/code> tags)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3 id=\"purpose\">Purpose<\/h3>\n<p>HTML answers &#8220;what is this content?&#8221; CSS answers &#8220;how should this content look?&#8221; An <code>&lt;h1&gt;<\/code> tag tells the browser something is a top-level heading. CSS tells it what size, colour, weight, and spacing that heading should have.<\/p>\n<h3 id=\"dependency\">Dependency<\/h3>\n<p>HTML is independent \u2014 a valid HTML file works in any browser with zero CSS. It won&#8217;t look like a modern website, but it&#8217;s perfectly functional and accessible. CSS depends entirely on HTML because it needs elements to select and style.<\/p>\n<h3 id=\"seo-impact\">SEO Impact<\/h3>\n<p>Well-structured semantic HTML helps search engines understand your content hierarchy and improves accessibility for screen readers \u2014 both of which directly affect rankings. CSS affects SEO indirectly through <a href=\"https:\/\/web.dev\/vitals\/\" target=\"_blank\" rel=\"noopener nofollow\">Core Web Vitals<\/a>: layout shifts (CLS), rendering performance (LCP), and mobile-friendliness are all influenced by how CSS is authored and delivered.<\/p>\n<hr \/>\n<h2 id=\"how-html-and-css-work-together\">How HTML and CSS Work Together<\/h2>\n<p>Here&#8217;s a practical example \u2014 the same content rendered without CSS and then with CSS applied:<\/p>\n<p><strong>HTML only:<\/strong><\/p>\n<pre><code class=\"language-html\">&lt;div class=\"card\"&gt;\n  &lt;h2&gt;Component Library&lt;\/h2&gt;\n  &lt;p&gt;Sync your React components directly into the design canvas.&lt;\/p&gt;\n  &lt;a href=\"\/merge\"&gt;Learn more&lt;\/a&gt;\n&lt;\/div&gt;\n<\/code><\/pre>\n<p>This renders as plain, unstyled text. The structure is there \u2014 heading, paragraph, link \u2014 but there&#8217;s no visual hierarchy or spatial organisation.<\/p>\n<p><strong>Add CSS:<\/strong><\/p>\n<pre><code class=\"language-css\">.card {\n  background: white;\n  border: 1px solid #e5e7eb;\n  border-radius: 12px;\n  padding: 32px;\n  max-width: 400px;\n}\n\n.card h2 {\n  font-size: 1.25rem;\n  font-weight: 600;\n  margin-bottom: 8px;\n  color: #111827;\n}\n\n.card p {\n  color: #6b7280;\n  line-height: 1.6;\n  margin-bottom: 16px;\n}\n\n.card a {\n  color: #4f46e5;\n  font-weight: 500;\n  text-decoration: none;\n}\n<\/code><\/pre>\n<p>Now the same HTML renders as a polished card with clear visual hierarchy, comfortable spacing, and a styled link. The HTML didn&#8217;t change \u2014 only the presentation layer did. This separation is what makes large codebases maintainable: you can redesign an entire site by updating the CSS without modifying the HTML structure.<\/p>\n<h3 id=\"the-cascade\">The Cascade and Specificity<\/h3>\n<p>The &#8220;Cascading&#8221; in CSS describes how the browser resolves conflicts when multiple rules target the same element. Three factors determine which rule wins:<\/p>\n<ol>\n<li><strong>Specificity<\/strong> \u2014 more specific selectors win. An <code>#id<\/code> selector beats a <code>.class<\/code> selector, which beats an <code>element<\/code> selector.<\/li>\n<li><strong>Source order<\/strong> \u2014 when specificity is equal, the rule that appears later in the stylesheet takes precedence.<\/li>\n<li><strong>Inheritance<\/strong> \u2014 some properties (like <code>font-family<\/code> and <code>color<\/code>) automatically pass from parent to child elements. Others (like <code>border<\/code> and <code>padding<\/code>) do not.<\/li>\n<\/ol>\n<p>Understanding the cascade is the single most important skill in CSS. Most CSS bugs are specificity conflicts in disguise.<\/p>\n<hr \/>\n<h2 id=\"modern-css-2026\">Modern CSS Features in 2026<\/h2>\n<p>CSS has evolved rapidly. Features that were experimental two years ago are now production standards with broad browser support.<\/p>\n<h3 id=\"flexbox-and-grid\">Flexbox and CSS Grid<\/h3>\n<p>Flexbox handles one-dimensional layout (rows or columns). CSS Grid handles two-dimensional layout (rows and columns simultaneously). Together they replace virtually every older layout technique.<\/p>\n<pre><code class=\"language-css\">\/* Flexbox: horizontal navigation *\/\nnav {\n  display: flex;\n  gap: 24px;\n  align-items: center;\n}\n\n\/* Grid: responsive card layout *\/\n.grid {\n  display: grid;\n  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));\n  gap: 24px;\n}\n<\/code><\/pre>\n<h3 id=\"container-queries\">Container Queries<\/h3>\n<p>Media queries respond to the viewport width. <strong>Container queries<\/strong> respond to the width of a parent element \u2014 making components truly portable across different layouts.<\/p>\n<pre><code class=\"language-css\">.card-wrapper {\n  container-type: inline-size;\n}\n\n@container (min-width: 400px) {\n  .card {\n    display: grid;\n    grid-template-columns: 120px 1fr;\n  }\n}\n<\/code><\/pre>\n<p>This card stacks vertically in a narrow sidebar and switches to a horizontal layout in a wider container \u2014 without knowing anything about the viewport size. Container queries are fully supported across Chrome, Firefox, Safari, and Edge.<\/p>\n<h3 id=\"has-selector\">The <code>:has()<\/code> Selector<\/h3>\n<p>CSS <code>:has()<\/code> \u2014 often called the &#8220;parent selector&#8221; \u2014 lets a parent element respond to what it contains. This was previously only possible with JavaScript.<\/p>\n<pre><code class=\"language-css\">\/* Style a form differently when it contains an invalid input *\/\nform:has(input:invalid) {\n  border-color: red;\n}\n\n\/* Style a card differently when it contains an image *\/\n.card:has(img) {\n  padding: 0;\n}\n<\/code><\/pre>\n<h3 id=\"css-variables\">Custom Properties (CSS Variables)<\/h3>\n<p>Custom properties make design tokens manageable directly in CSS:<\/p>\n<pre><code class=\"language-css\">:root {\n  --color-primary: #4f46e5;\n  --spacing-md: 16px;\n  --radius-card: 12px;\n}\n\n.button {\n  background: var(--color-primary);\n  padding: var(--spacing-md);\n  border-radius: var(--radius-card);\n}\n<\/code><\/pre>\n<p>Change <code>--color-primary<\/code> once and it updates everywhere that references it. This is the CSS equivalent of what <a href=\"https:\/\/www.uxpin.com\/studio\/blog\/ui-systems\/\" target=\"_blank\" rel=\"noopener\">design systems<\/a> do at the component level \u2014 a single source of truth for visual decisions.<\/p>\n<h3 id=\"css-nesting\">Native CSS Nesting<\/h3>\n<p>CSS nesting, now supported in all major browsers, lets you write selectors inside other selectors \u2014 similar to how Sass and Less work, but without a preprocessor:<\/p>\n<pre><code class=\"language-css\">.card {\n  background: white;\n  border-radius: 12px;\n\n  & h2 {\n    font-size: 1.25rem;\n    color: #111827;\n  }\n\n  & p {\n    color: #6b7280;\n    line-height: 1.6;\n  }\n\n  &:hover {\n    box-shadow: 0 4px 12px rgba(0,0,0,0.1);\n  }\n}\n<\/code><\/pre>\n<p>Nesting reduces repetition and makes stylesheets easier to read by grouping related rules visually.<\/p>\n<hr \/>\n<h2 id=\"learn-html-or-css-first\">Which Should You Learn First?<\/h2>\n<p><strong>Learn HTML first.<\/strong> You can write a complete, functional web page with nothing but HTML. CSS requires HTML to have something to target \u2014 there&#8217;s nothing to style without structure.<\/p>\n<p>A practical learning sequence:<\/p>\n<ol>\n<li><strong>HTML<\/strong> \u2014 elements, attributes, semantic structure, forms, links, images, tables<\/li>\n<li><strong>CSS<\/strong> \u2014 selectors, the box model, Flexbox, Grid, responsive design, custom properties<\/li>\n<li><strong>JavaScript<\/strong> \u2014 interactivity, DOM manipulation, event handling, data fetching<\/li>\n<\/ol>\n<p>Most people can become productive with HTML and CSS within a few weeks. Mastering them \u2014 understanding the cascade deeply, writing efficient selectors, building truly responsive and accessible layouts \u2014 takes longer and is genuinely one of the most durable skills in web development.<\/p>\n<hr \/>\n<h2 id=\"html-css-and-design-tools\">HTML, CSS, and Modern Design Tools<\/h2>\n<p>Understanding HTML and CSS makes you a better designer, not just a better developer. When you know that a button is an HTML element with CSS properties \u2014 <code>padding<\/code>, <code>border-radius<\/code>, <code>background-color<\/code>, <code>font-size<\/code> \u2014 you design buttons that translate directly into code rather than ones that require guesswork during implementation.<\/p>\n<p>This is the core idea behind <strong>code-backed design tools<\/strong>. When designers work with actual HTML and CSS components \u2014 not visual approximations of them \u2014 the gap between design and production closes entirely. What&#8217;s on the canvas is what ships.<\/p>\n<p><a href=\"https:\/\/www.uxpin.com\/merge\" target=\"_blank\" rel=\"noopener\">UXPin Merge<\/a> renders real React components on the design canvas \u2014 components built with the same HTML and CSS that live in the production codebase. When you adjust a prop or variant in UXPin, you&#8217;re modifying the same properties a developer would modify in code. The output is production-ready JSX that references those components directly.<\/p>\n<p>With <a href=\"https:\/\/www.uxpin.com\/forge\" target=\"_blank\" rel=\"noopener\">Forge<\/a>, UXPin&#8217;s AI design assistant, you can generate complete layouts from a text prompt \u2014 and every element Forge places is a real component from your team&#8217;s library, styled with the same CSS tokens your engineers use. It&#8217;s AI generation that&#8217;s constrained to your production design system, so the output is code-ready from the start.<\/p>\n<hr \/>\n<h2 id=\"faq\">FAQs: HTML vs CSS<\/h2>\n<p><strong>Q: What is the difference between HTML and CSS?<\/strong><\/p>\n<p>HTML defines the structure and content of a web page \u2014 headings, paragraphs, images, links, and forms. CSS controls the visual presentation \u2014 colours, typography, layout, spacing, and responsive behaviour. HTML determines what&#8217;s on the page; CSS determines how it looks.<\/p>\n<p><strong>Q: Should I learn HTML or CSS first?<\/strong><\/p>\n<p>Learn HTML first. You can create a fully functional web page with HTML alone. CSS requires HTML elements to exist before it can style them. After learning HTML, move to CSS for layout and visual design, then JavaScript for interactivity.<\/p>\n<p><strong>Q: Can a website work without CSS?<\/strong><\/p>\n<p>Yes, but it will render as a plain text document \u2014 no colours, no layout, no visual hierarchy. Every modern website uses CSS for presentation, responsive behaviour, and visual design.<\/p>\n<p><strong>Q: Can CSS work without HTML?<\/strong><\/p>\n<p>No. CSS selects and styles HTML elements. Without HTML, CSS has nothing to target and produces no output.<\/p>\n<p><strong>Q: What is semantic HTML and why does it matter?<\/strong><\/p>\n<p>Semantic HTML uses elements that describe the purpose of content \u2014 <code>&lt;header&gt;<\/code>, <code>&lt;nav&gt;<\/code>, <code>&lt;main&gt;<\/code>, <code>&lt;article&gt;<\/code>, <code>&lt;footer&gt;<\/code> \u2014 rather than generic containers like <code>&lt;div&gt;<\/code>. Semantic HTML improves accessibility for assistive technologies, helps search engines understand page structure, and makes code more maintainable.<\/p>\n<p><strong>Q: Does HTML or CSS affect SEO?<\/strong><\/p>\n<p>Both. Semantic HTML structure helps search engines understand content hierarchy and is a direct ranking signal. CSS affects SEO indirectly through Core Web Vitals \u2014 layout shifts (CLS), largest contentful paint (LCP), and mobile responsiveness are all influenced by how CSS is written and loaded.<\/p>\n<p><strong>Q: What are the newest CSS features in 2026?<\/strong><\/p>\n<p>The most impactful modern CSS features include container queries (<code>@container<\/code>) for component-level responsiveness, the <code>:has()<\/code> parent selector, native CSS nesting, CSS custom properties (variables), and subgrid. All are fully supported in Chrome, Firefox, Safari, and Edge.<\/p>\n<p><strong>Q: What is the CSS cascade?<\/strong><\/p>\n<p>The cascade is how browsers resolve conflicts when multiple CSS rules target the same element. It&#8217;s determined by specificity (how targeted the selector is), source order (later rules win when specificity is equal), and inheritance (some properties pass from parent to child elements automatically).<\/p>\n<p><strong>Q: What is the difference between Flexbox and CSS Grid?<\/strong><\/p>\n<p>Flexbox is designed for one-dimensional layout \u2014 aligning items in a single row or column. CSS Grid is designed for two-dimensional layout \u2014 placing items across both rows and columns simultaneously. Most modern layouts combine both: Grid for page-level structure, Flexbox for component-level alignment.<\/p>\n<hr \/>\n<h2 id=\"summary\">Summary<\/h2>\n<p>HTML and CSS are distinct but inseparable. HTML gives your page meaning and structure \u2014 it&#8217;s what browsers, search engines, and screen readers parse. CSS gives it visual form \u2014 it&#8217;s what users see, interact with, and judge.<\/p>\n<p>In 2026, both remain the absolute foundation of everything on the web. Frameworks evolve, build tools come and go, but HTML and CSS have been stable for decades and will be for decades more. Mastering them \u2014 not just the basics, but the cascade, specificity, modern layout techniques, container queries, and responsive design patterns \u2014 is one of the most durable and valuable investments you can make in web development.<\/p>\n<hr \/>\n<p><em>UXPin renders real HTML and CSS components directly on the design canvas \u2014 so what you design is exactly what developers build. <a href=\"https:\/\/www.uxpin.com\/sign-up\">Try UXPin for free \u2192<\/a><\/em><\/p>\n<div class=\"wp-block-button is-style-fill\"><center><a class=\"btn btn-flat btn-large btn-content-width\" href=\"https:\/\/www.uxpin.com\/sign-up\" target=\"_blank\" rel=\"noopener\">Try UXPin for free<\/a><\/center><\/div>\n<p><script type=\"application\/ld+json\">\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"Article\",\n  \"headline\": \"HTML vs CSS: What's the Difference? 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