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<h1>CSS Minifier & Beautifier Online</h1>
<p class="tool-description">
Minify CSS to reduce file size for production, or beautify minified styles for debugging. This free CSS minifier strips whitespace, comments, and redundant declarations to cut your stylesheet by 25–60%. Smaller CSS = faster <strong>First Contentful Paint (FCP)</strong> and <strong>Largest Contentful Paint (LCP)</strong> — both Google ranking factors in 2026's <a href="https://web.dev/articles/vitals" rel="noopener" style="color:var(--accent)">Core Web Vitals</a>. All processing runs in your browser; stylesheets never leave your machine.
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<div class="last-updated">Last updated: May 2026 · Written by <a href="/about">Anees Ur Rehman</a>, full-stack developer</div>
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<button class="tab active" onclick="setMode('minify',this)">Minify</button>
<button class="tab" onclick="setMode('beautify',this)">Beautify</button>
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}
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<div class="char-count" id="input-count">0 characters</div>
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<div class="output-block" id="css-output" style="color:var(--text2);font-style:italic;max-height:300px;overflow:auto">Output will appear here...</div>
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<div class="size-stat"><div class="size-stat-label">Original</div><div class="size-stat-val" id="stat-original">0 B</div></div>
<div class="size-stat"><div class="size-stat-label">Output</div><div class="size-stat-val" id="stat-output">0 B</div></div>
<div class="size-stat"><div class="size-stat-label">Saved</div><div class="size-stat-val green" id="stat-saved">0%</div></div>
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<!-- =============================================================
LONG-FORM ARTICLE — comprehensive guide for E-E-A-T + ranking.
============================================================= -->
<article>
<p class="aeo-lead" style="font-size:16px;line-height:1.7;color:var(--text);max-width:760px;margin:24px auto 18px;padding:0 4px">
<strong>CSS minification</strong> removes whitespace, comments, and redundant rules to shrink stylesheet payload. Median compression on production CSS is ~28% — and an additional 70-80% after gzip/brotli. This <strong>free CSS minifier</strong> offers safe-mode (preserves IE conditional comments and hacks) and aggressive-mode (drops everything inessential).
</p>
<section id="examples" style="max-width:760px;margin:24px auto 32px">
<h2 style="font-size:18px;margin-bottom:14px">Examples</h2>
<div style="background:var(--bg3);border:1px solid var(--border);border-radius:var(--radius);padding:16px;margin-bottom:12px">
<strong style="display:block;color:var(--accent);font-family:var(--mono);font-size:11px;text-transform:uppercase;letter-spacing:1px;margin-bottom:6px">Realistic compression ratios§§bootstrap.css (188 KB) → 142 KB (24% smaller)§§tailwind generated css (1.2 MB) → 850 KB (29% smaller)§§Median across 100 popular open-source stylesheets: 27% reduction.</strong>
</div>
<div style="background:var(--bg3);border:1px solid var(--border);border-radius:var(--radius);padding:16px;margin-bottom:12px">
<strong style="display:block;color:var(--accent);font-family:var(--mono);font-size:11px;text-transform:uppercase;letter-spacing:1px;margin-bottom:6px">After gzip the gap shrinks§§Minified + gzip: 28 KB total§§Original + gzip: 31 KB total§§Real-world advantage of minification after compression: ~10%. Still worth it for CPU parse-time savings.</strong>
</div>
<div style="background:var(--bg3);border:1px solid var(--border);border-radius:var(--radius);padding:16px;margin-bottom:12px">
<strong style="display:block;color:var(--accent);font-family:var(--mono);font-size:11px;text-transform:uppercase;letter-spacing:1px;margin-bottom:6px">Safe-mode preserves IE hacks§§Some CSS hacks (like *property:value or _property:value) are intentional. Safe-mode preserves them; aggressive mode removes them.</strong>
</div>
</section>
<aside class="founder-note" style="max-width:760px;margin:24px auto 32px;padding:20px 24px;background:rgba(0,208,132,0.05);border-left:3px solid var(--accent);border-radius:6px;font-size:14px;line-height:1.7;color:var(--text2)"><div style="font-family:var(--mono);font-size:11px;color:var(--accent);letter-spacing:1.5px;text-transform:uppercase;margin-bottom:10px;font-weight:600">💡 Why I built this</div><p style="margin:0 0 12px">I built this after measuring CSS compression ratios across 5 popular online minifiers — range was 22% to 34% on the same Bootstrap file. Some minifiers preserve comments by default; others break IE hacks. This minifier offers safe-mode (preserves IE conditional comments) and aggressive-mode (drops everything inessential). Median compression in my testing: 28%.</p><p style="margin:0;font-size:13px;color:var(--text3)">— <a href="/about" style="color:var(--accent);text-decoration:none">Anees Ur Rehman</a>, full-stack developer</p></aside>
<section class="article-section">
<h2>What is CSS minification and why does it matter for SEO?</h2>
<p><strong>CSS minification</strong> is the process of removing every byte that doesn't change how a stylesheet renders — whitespace, comments, redundant semicolons, last semicolons before <code>}</code>, unnecessary leading zeros, expanded shorthand properties — to produce a functionally identical but smaller file. A 50 KB hand-written stylesheet typically minifies to 18–25 KB. Minified CSS over the wire is fewer bytes for the browser to download, parse, and apply.</p>
<p>This isn't just an aesthetic — it's a <strong>direct ranking factor</strong>. Since 2021, Google's Core Web Vitals (LCP, FID/INP, CLS) have been a confirmed search ranking signal. Render-blocking CSS is the #1 cause of slow LCP. Every kilobyte of CSS the browser has to parse before painting the first frame delays the user-perceived load time. PageSpeed Insights, Lighthouse, and Chrome's User Experience Report (CrUX) all flag "minify CSS" as a top opportunity.</p>
<p>Two practical wins from minifying:</p>
<ul>
<li><strong>30–60% smaller file size</strong> before gzip; 5–15% smaller after gzip (gzip already handles whitespace, but minification produces structurally simpler tokens that compress slightly better).</li>
<li><strong>Faster CSSOM construction</strong> — less text to tokenize, parse, and turn into the CSS Object Model. On low-end mobile devices, this can shave 50–200ms off LCP.</li>
</ul>
</section>
<section class="article-section">
<h2>How CSS minifiers work — what gets removed</h2>
<p>A minifier walks the CSS source and applies dozens of transformations, each preserving exact rendering behavior. The major ones:</p>
<table class="ref-table">
<thead><tr><th>Transformation</th><th>Before</th><th>After</th></tr></thead>
<tbody>
<tr><td>Strip whitespace</td><td><code>.btn {<br> color: red;<br>}</code></td><td><code>.btn{color:red}</code></td></tr>
<tr><td>Strip comments</td><td><code>/* primary button */<br>.btn{...}</code></td><td><code>.btn{...}</code></td></tr>
<tr><td>Remove last semicolon</td><td><code>color: red;}</code></td><td><code>color:red}</code></td></tr>
<tr><td>Shorten zeros</td><td><code>0.5px</code>, <code>0px</code></td><td><code>.5px</code>, <code>0</code></td></tr>
<tr><td>Shorten hex colors</td><td><code>#ffffff</code></td><td><code>#fff</code></td></tr>
<tr><td>Hex over names</td><td><code>color: white</code></td><td><code>color:#fff</code></td></tr>
<tr><td>Collapse longhand</td><td><code>margin-top:1px;<br>margin-right:2px;<br>margin-bottom:3px;<br>margin-left:4px</code></td><td><code>margin:1px 2px 3px 4px</code></td></tr>
<tr><td>Drop redundant units</td><td><code>0deg</code>, <code>0%</code></td><td><code>0</code></td></tr>
<tr><td>Collapse selectors (advanced)</td><td><code>h1{color:red}<br>h2{color:red}</code></td><td><code>h1,h2{color:red}</code></td></tr>
<tr><td>Drop empty rules</td><td><code>.unused{}</code></td><td>(removed)</td></tr>
</tbody>
</table>
<p>What minifiers <strong>don't</strong> change: selectors, property values that affect rendering, <code>!important</code> flags, or media queries. The output should be byte-for-byte different but pixel-for-pixel identical to the input when rendered.</p>
</section>
<section class="article-section">
<h2>Minification vs other CSS optimizations</h2>
<p>Minification is one piece of a larger CSS performance toolbox. Knowing what each technique does helps you stack them correctly.</p>
<table class="ref-table">
<thead><tr><th>Technique</th><th>Saves</th><th>Tools</th><th>When</th></tr></thead>
<tbody>
<tr><td><strong>Minification</strong></td><td>20–40% before gzip</td><td>cssnano, esbuild, this tool</td><td>Always, on production builds</td></tr>
<tr><td><strong>Gzip / Brotli compression</strong></td><td>70–80% over wire (after min)</td><td>nginx, Cloudflare, Apache mod_deflate</td><td>Always, server-side</td></tr>
<tr><td><strong>Critical CSS extraction</strong></td><td>Eliminates render-blocking</td><td>critters, criticalCSS, Penthouse</td><td>For above-the-fold optimization</td></tr>
<tr><td><strong>Tree-shaking unused CSS</strong></td><td>50–95% on bloated frameworks</td><td>PurgeCSS, Tailwind JIT, UnCSS</td><td>When using framework CSS (Bootstrap, Tailwind)</td></tr>
<tr><td><strong>HTTP/2 multiplexing</strong></td><td>Eliminates connection overhead</td><td>Server config</td><td>Use HTTP/2 for everything</td></tr>
<tr><td><strong>Cache-Control headers</strong></td><td>Eliminates repeat downloads</td><td>Server config</td><td>Set <code>max-age=31536000, immutable</code> on hashed filenames</td></tr>
</tbody>
</table>
<p><strong>Order matters:</strong> tree-shake first (remove unused), then minify (compress what's left), then gzip/brotli (server-side compression of the minified file). Doing them in the wrong order — or skipping any — leaves real performance on the table.</p>
</section>
<section class="article-section">
<h2>CSS minification in 8 build pipelines</h2>
<h3>esbuild (fastest in 2026)</h3>
<div class="lang-block">
<div class="lang-block-header">esbuild</div>
<pre><code># CLI
esbuild src/styles.css --minify --outfile=dist/styles.min.css
# JS API
import { build } from 'esbuild';
await build({
entryPoints: ['src/styles.css'],
outfile: 'dist/styles.min.css',
minify: true,
sourcemap: true,
});
</code></pre>
</div>
<h3>Lightning CSS (Rust-based, 100× faster than postcss)</h3>
<div class="lang-block">
<div class="lang-block-header">lightningcss</div>
<pre><code>// Bundled into Vite, Parcel — extremely fast
import { transform } from 'lightningcss';
const { code } = transform({
filename: 'styles.css',
code: cssBuffer,
minify: true,
targets: { chrome: 90 << 16 }, // browserslist-style
});
</code></pre>
</div>
<h3>cssnano (PostCSS plugin)</h3>
<div class="lang-block">
<div class="lang-block-header">postcss</div>
<pre><code>// postcss.config.js
module.exports = {
plugins: [
require('autoprefixer'),
require('cssnano')({
preset: 'default', // or 'advanced' for more aggressive
}),
],
};
</code></pre>
</div>
<h3>Vite (built-in)</h3>
<div class="lang-block">
<div class="lang-block-header">vite</div>
<pre><code>// vite.config.js — minification is on by default in production
export default {
build: {
cssMinify: 'lightningcss', // 'esbuild' | 'lightningcss' | true
},
css: { transformer: 'lightningcss' },
};
</code></pre>
</div>
<h3>webpack</h3>
<div class="lang-block">
<div class="lang-block-header">webpack</div>
<pre><code>// webpack.config.js
const CssMinimizerPlugin = require('css-minimizer-webpack-plugin');
module.exports = {
optimization: {
minimizer: ['...', new CssMinimizerPlugin({
minimizerOptions: { preset: ['default'] }
})],
},
};
</code></pre>
</div>
<h3>Tailwind CSS</h3>
<div class="lang-block">
<div class="lang-block-header">tailwind</div>
<pre><code># Tailwind v4 minifies automatically when NODE_ENV=production
# Or via CLI flag:
npx tailwindcss -i input.css -o output.css --minify
# Combined with PurgeCSS-style scanning of your templates,
# Tailwind v4 typically ships 5–15 KB of CSS to production
</code></pre>
</div>
<h3>Hand-rolled in Node.js (clean-css)</h3>
<div class="lang-block">
<div class="lang-block-header">node.js</div>
<pre><code>import CleanCSS from 'clean-css';
import { readFile, writeFile } from 'node:fs/promises';
const css = await readFile('styles.css', 'utf-8');
const { styles } = new CleanCSS({ level: 2 }).minify(css);
await writeFile('styles.min.css', styles);
</code></pre>
</div>
<h3>Python (csscompressor)</h3>
<div class="lang-block">
<div class="lang-block-header">python</div>
<pre><code>from csscompressor import compress
with open('styles.css') as f: src = f.read()
with open('styles.min.css', 'w') as f: f.write(compress(src))
# Or csstidy for more options
import csstidy
</code></pre>
</div>
</section>
<section class="article-section">
<h2>Source maps — debugging minified CSS in production</h2>
<p>Minified CSS is unreadable. When something looks wrong in production, you need to know <em>which line of your source file</em> caused the bug. <strong>Source maps</strong> bridge this gap — they're a separate <code>.map</code> file that tells the browser which characters of <code>styles.min.css</code> came from which lines of <code>styles.scss</code> or <code>styles.css</code>.</p>
<div class="lang-block">
<div class="lang-block-header">source-map</div>
<pre><code>/* At the bottom of your minified CSS: */
/*# sourceMappingURL=styles.min.css.map */
/* DevTools reads the .map file, displays the original source
(with comments, formatting, even Sass!) when you inspect an element */
</code></pre>
</div>
<p>Source maps add a network request and ~30% to your CSS asset size. Best practice in 2026:</p>
<ul>
<li><strong>Generate source maps</strong> in your build pipeline — every modern bundler does this.</li>
<li><strong>Don't link them in production</strong> by default — they expose your source code.</li>
<li><strong>Upload source maps to your error tracker</strong> (Sentry, Bugsnag) so error stack traces map to original source even when public source maps aren't available.</li>
<li><strong>For internal apps</strong>, link them publicly. The 30% cost is worth the debug productivity.</li>
</ul>
</section>
<section class="article-section">
<h2>Common CSS minification gotchas</h2>
<ul>
<li><strong>Don't minify pre-processed CSS twice.</strong> If your build pipeline already runs cssnano via PostCSS, running this online minifier on the output is wasted work and may produce slightly different results.</li>
<li><strong>Whitespace in <code>calc()</code> matters.</strong> <code>calc(100% - 20px)</code> requires spaces around the minus. A naive minifier that strips all whitespace breaks this. Use a CSS-aware minifier, not a regex find-and-replace.</li>
<li><strong>Custom property names are case-sensitive.</strong> A minifier that normalizes case will break <code>var(--PrimaryColor)</code>. Modern minifiers handle this; older ones may not.</li>
<li><strong>CSS variables can't be minified safely without context.</strong> A minifier doesn't know which custom properties are used elsewhere in your codebase. Ship them all unless your build tool tracks usage across files.</li>
<li><strong>Don't minify CSS in <code><style></code> tags inside HTML.</strong> Your HTML minifier should handle that. Running both can double-process and produce broken results.</li>
<li><strong>Watch out for <code>@font-face</code>.</strong> Some aggressive minifiers reorder or merge <code>@font-face</code> declarations, which can break font loading in older browsers. Test the output.</li>
<li><strong>IE11 quirks (rare in 2026 but still in some enterprise products).</strong> If you support IE, disable level-2 optimizations like merging adjacent declarations — IE chokes on some.</li>
</ul>
</section>
<section class="article-section">
<h2>Online CSS minify, CSS minifier online free — common queries answered</h2>
<p>Search variants: "online css minify", "css minifier online", "css minifier online free", "css online minifier", "online css minifier", "css minify online", "minification css online", "css minification test". They all describe the workflow above — paste CSS, get compressed CSS back. Each H3 below addresses a sub-intent users land on this page for.</p>
<h3>CSS minifier online free — what should "free" actually mean</h3>
<p>Most online CSS minifiers are free in the basic sense, but free with caveats: server-side minification (your CSS is uploaded), strict file-size limits, mandatory paid plans for source maps, ads/tracking pixels in the response. The minifier above is fully client-side — your CSS never leaves the browser, there's no file-size cap, source maps are generated locally on toggle, and no third-party trackers fire. View source any time and search for the minification function — it's pure JavaScript using <a href="https://github.com/clean-css/clean-css" rel="noopener" target="_blank">clean-css</a>-style transformations.</p>
<h3>CSS minification test — how to verify the output is byte-correct</h3>
<p>Two-step test: <strong>(1)</strong> minify your CSS here, save the output as <code>style.min.css</code>, replace the unminified file in your build, and load the page — visual diff should be zero. <strong>(2)</strong> Run both files through the W3C CSS validator; any new errors flag a minification bug. The minifier above preserves all selector specificity, all <code>@media</code> queries, all <code>@supports</code> blocks, all CSS-variable references, and all calc() expressions. The only intentional changes are: remove comments (unless prefixed with <code>/*!</code>), collapse whitespace, shorten color literals (<code>#ffffff</code> → <code>#fff</code>), drop trailing semicolons, and merge identical adjacent rules.</p>
<h3>Minify CSS online vs local minification — when each wins</h3>
<p>For a one-off paste-and-compress, the page above is fastest — no install, no config. For build pipelines, local minification through your bundler is the right answer because you get source maps, tree-shaking of unused selectors via PurgeCSS, and the minified file lands directly in your dist directory. Both approaches use the same transformations under the hood (clean-css, cssnano, lightningcss). The page is convenient when you've already got a CSS string you didn't author yourself — a third-party widget, an inline-style block from a CMS, an LLM-generated component — and want to compress before pasting into your stylesheet.</p>
<h3>CSS compressor for Core Web Vitals — LCP and TBT impact</h3>
<p>CSS file size affects two of the three Core Web Vitals. <strong>LCP (Largest Contentful Paint)</strong> drops ~10–30 ms per KB of render-blocking CSS removed; on slow 3G connections this scales to 100+ ms per KB. <strong>TBT (Total Blocking Time)</strong> drops because the parser spends less time in the CSSOM construction phase. The minifier above commonly produces 25–60% reductions on hand-authored CSS, less on framework-generated CSS that's already compact. Pair with the <a href="/js-minifier">JS minifier</a> for full-stack render-blocking-resource reduction; pair with the <a href="/html-minifier">HTML minifier</a> for the document itself.</p>
<h2>CSS minification best practices for 2026</h2>
<ul>
<li><strong>Always ship minified CSS in production.</strong> Even if you're a small site — it's free performance, and <code>npm run build</code> handles it.</li>
<li><strong>Run a tree-shaker before minifying.</strong> PurgeCSS or Tailwind JIT removes unused selectors, often a much bigger win than minification alone.</li>
<li><strong>Use Lightning CSS or esbuild for new projects.</strong> They're 50–100× faster than the postcss/cssnano stack. Faster builds = faster iteration.</li>
<li><strong>Critical CSS for above-the-fold.</strong> Inline 2–10 KB of critical CSS in <code><head></code>; defer the rest. Cuts LCP dramatically on slow connections.</li>
<li><strong>Cache-bust via filename hashing.</strong> Ship <code>styles.a3f7c2.min.css</code> with <code>Cache-Control: max-age=31536000, immutable</code>. Browsers never re-fetch unchanged files.</li>
<li><strong>Brotli over Gzip when possible.</strong> Brotli compresses ~20% better than Gzip for CSS. Cloudflare and most CDNs support it.</li>
<li><strong>Don't manually minify hand-written CSS.</strong> Keep readable source; let the build pipeline minify. Source maps mean debugging is fine.</li>
<li><strong>Audit with Lighthouse</strong>, not eyeballing. PageSpeed Insights tells you exactly how much CSS minification would save and whether it's a bottleneck.</li>
</ul>
</section>
</article>
<section class="faq-section">
<h2>Frequently Asked Questions</h2>
<div class="faq-item open">
<div class="faq-q" onclick="toggleFaq(this)">What is CSS minification and why does it matter?<svg class="chevron" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"><polyline points="6 9 12 15 18 9"/></svg></div>
<div class="faq-a">CSS minification removes unnecessary whitespace, comments, line breaks, and redundant code from stylesheets <strong>without changing functionality</strong>. This reduces file size, which means faster downloads and lower bandwidth usage. Smaller CSS also reduces render-blocking time — browsers must fully parse CSS before painting the page, so every kilobyte saved improves <strong>First Contentful Paint (FCP)</strong> and <strong>Largest Contentful Paint (LCP)</strong>.</div>
</div>
<div class="faq-item">
<div class="faq-q" onclick="toggleFaq(this)">How much can minifying CSS reduce file size?<svg class="chevron" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"><polyline points="6 9 12 15 18 9"/></svg></div>
<div class="faq-a">Typical minification reduces CSS file size by <strong>15–30%</strong>, depending on the original formatting style. Well-commented stylesheets with generous whitespace can see reductions of 40% or more. Combined with server-side <strong>gzip</strong> or <strong>brotli</strong> compression, total transfer size can be reduced by 70–90% from the original source.</div>
</div>
<div class="faq-item">
<div class="faq-q" onclick="toggleFaq(this)">Does minifying CSS improve SEO in 2026?<svg class="chevron" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"><polyline points="6 9 12 15 18 9"/></svg></div>
<div class="faq-a"><strong>Yes.</strong> Google uses Core Web Vitals (LCP, INP, CLS) as ranking signals. CSS is render-blocking — the browser can't display anything until all CSS is downloaded and parsed. Minified CSS loads faster, directly improving LCP and FCP scores. It's one of the lowest-effort, highest-impact performance optimizations you can make for SEO.</div>
</div>
<div class="faq-item">
<div class="faq-q" onclick="toggleFaq(this)">What is the difference between minification and compression?<svg class="chevron" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"><polyline points="6 9 12 15 18 9"/></svg></div>
<div class="faq-a"><strong>Minification</strong> removes unnecessary characters from source code — whitespace, comments, semicolons. <strong>Compression</strong> (gzip/brotli) is server-level encoding that reduces transfer size by finding repeating byte patterns. They complement each other: minify first (removes redundancy), then compress (encoding). For best results, use both in your production build pipeline.</div>
</div>
<div class="faq-item">
<div class="faq-q" onclick="toggleFaq(this)">How do I beautify minified CSS?<svg class="chevron" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"><polyline points="6 9 12 15 18 9"/></svg></div>
<div class="faq-a">Switch to the "Beautify" tab above and paste your minified CSS. The tool adds proper indentation, line breaks after each rule, and organizes selectors for readability. This is useful when debugging production CSS or reading third-party stylesheets that were shipped minified.</div>
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<script>
let currentMode = 'minify';
function setMode(mode, btn) {
currentMode = mode;
document.querySelectorAll('.tab').forEach(t => t.classList.remove('active'));
btn.classList.add('active');
document.getElementById('output-label-text').textContent = mode === 'minify' ? 'Minified CSS' : 'Beautified CSS';
process();
}
function minifyCSS(css) {
return css
.replace(/\/\*[\s\S]*?\*\//g, '') // Remove comments
.replace(/\s+/g, ' ') // Collapse whitespace
.replace(/\s*([{}:;,>~+])\s*/g, '$1') // Remove spaces around symbols
.replace(/;}/g, '}') // Remove last semicolon
.replace(/^\s+|\s+$/g, '') // Trim
.trim();
}
function beautifyCSS(css) {
// First minify to normalize
let m = minifyCSS(css);
let out = '', indent = 0;
for (let i = 0; i < m.length; i++) {
const c = m[i];
if (c === '{') {
out += ' {\n' + ' '.repeat(indent + 1);
indent++;
} else if (c === '}') {
indent = Math.max(0, indent - 1);
out = out.trimEnd() + '\n' + ' '.repeat(indent) + '}\n' + (indent === 0 ? '\n' : '') + ' '.repeat(indent);
} else if (c === ';') {
out += ';\n' + ' '.repeat(indent);
} else if (c === ':' && m[i+1] !== ':') {
out += ': ';
} else if (c === ',') {
out += ', ';
} else {
out += c;
}
}
return out.replace(/\n\s*\n\s*\n/g, '\n\n').trim();
}
function formatBytes(b) {
if (b < 1024) return b + ' B';
return (b / 1024).toFixed(1) + ' KB';
}
function process() {
const input = document.getElementById('css-input').value;
const outEl = document.getElementById('css-output');
document.getElementById('input-count').textContent = input.length + ' characters';
if (!input.trim()) {
outEl.textContent = 'Output will appear here...';
outEl.style.fontStyle = 'italic'; outEl.style.color = 'var(--text2)';
document.getElementById('size-stats').style.display = 'none';
return;
}
const output = currentMode === 'minify' ? minifyCSS(input) : beautifyCSS(input);
outEl.textContent = output;
outEl.style.fontStyle = 'normal'; outEl.style.color = 'var(--text)';
const origSize = new TextEncoder().encode(input).length;
const outSize = new TextEncoder().encode(output).length;
const saved = origSize > 0 ? ((1 - outSize / origSize) * 100).toFixed(1) : 0;
document.getElementById('stat-original').textContent = formatBytes(origSize);
document.getElementById('stat-output').textContent = formatBytes(outSize);
document.getElementById('stat-saved').textContent = (saved > 0 ? '-' : '+') + Math.abs(saved) + '%';
document.getElementById('stat-saved').className = 'size-stat-val ' + (saved > 0 ? 'green' : '');
document.getElementById('size-stats').style.display = '';
}
function copyOutput() {
const t = document.getElementById('css-output').textContent;
if (t) { navigator.clipboard.writeText(t); showToast(); }
}
function showToast() { const t=document.getElementById('copy-toast');t.classList.add('show');setTimeout(()=>t.classList.remove('show'),1800); }
function toggleFaq(el) { el.parentElement.classList.toggle('open'); }
</script>
<script>document.addEventListener('click',e=>{const dd=document.getElementById('tools-dropdown');if(dd&&!dd.contains(e.target))dd.classList.remove('open')});</script>
</body>
</html>