DevBolt
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How do I build Tailwind CSS classes visually online?

Use the visual builder to configure spacing, typography, colors, borders, layout, and effects, then see the generated Tailwind utility classes and a live preview. Choose from component presets like buttons, cards, and inputs. Copy the classes with one click. Everything runs in your browser.

Generate card component
Input
Component: Card
Shadow: medium
Rounded: large
Padding: 6
Output
<div class="rounded-lg shadow-md p-6
  bg-white dark:bg-gray-800">
  <h3 class="text-lg font-semibold
    text-gray-900 dark:text-white">
    Card Title
  </h3>
  <p class="mt-2 text-gray-600
    dark:text-gray-300">
    Card content here
  </p>
</div>
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Tailwind CSS Generator

Build Tailwind utility classes visually — pick properties, see a live preview, and copy the class string.

Live Preview

0 classes active
Preview element

Presets

Layout

Sizing

Spacing

Typography

Background

Border

Effects & Transitions

Custom Classes

Add responsive, hover, focus, or any classes not covered by the dropdowns above.

Class String

(no classes selected)

HTML Output

<div>
  Preview element
</div>
About Tailwind CSS

Tailwind CSS is a utility-first CSS framework that lets you style elements by composing small, single-purpose classes directly in your HTML.

Instead of writing custom CSS like padding: 1rem; background-color: blue; you write p-4 bg-blue-500 directly on the element.

This tool helps you explore Tailwind's utility classes visually. Pick properties from the dropdowns, see the live preview update, and copy the generated class string into your project.

Tips for Using This Generator

Start with a preset — pick a component preset (Button, Card, Badge) and tweak from there.

Use the Custom Classes field for responsive prefixes (sm:, md:, lg:), state variants (hover:, focus:, active:), and dark mode (dark:).

Padding vs. Padding X/Y — if you set both p-* and px-*/py-*, the axis-specific values will override the all-sides value in the browser. Choose one or the other.

Tips & Best Practices

Pro Tip

Use @apply sparingly — it defeats Tailwind's purpose

Extracting utility classes into @apply rules in CSS recreates the specificity and maintenance problems Tailwind was designed to solve. Use @apply only for truly repeated patterns (like .btn) that can't be handled with component extraction.

Common Pitfall

Tailwind purges unused classes — dynamic class names break

Tailwind's JIT compiler scans your source files for class names as static strings. Dynamically constructing classes like `bg-${color}-500` won't work — the compiler can't find them. Use complete class strings: `color === 'red' ? 'bg-red-500' : 'bg-blue-500'`.

Real-World Example

Design tokens map cleanly to Tailwind's config

Extend tailwind.config.js with your design system tokens: custom colors, spacing scale, font families. This gives you autocomplete and consistency while keeping Tailwind's utility-first approach. One config file replaces scattered CSS variables.

Security Note

Never inject user-supplied values directly into class names

If you build class names from user input (e.g., className={userInput}), an attacker could inject arbitrary CSS via Tailwind's arbitrary value syntax like [background:url(malicious-site)]. Always validate and whitelist allowed values.

Frequently Asked Questions

How do I build responsive layouts with Tailwind CSS?
Tailwind uses mobile-first responsive prefixes: sm (640px), md (768px), lg (1024px), xl (1280px), 2xl (1536px). Write base styles for mobile, then add prefixed utilities for larger screens. For example, w-full md:w-1/2 lg:w-1/3 makes an element full-width on mobile, half on tablets, one-third on desktops. DevBolt's visual generator lets you compose classes interactively with a live preview showing how the layout responds at each breakpoint.
What is the difference between Tailwind CSS and traditional CSS?
Tailwind is utility-first: you compose styles by applying pre-built classes in HTML. Traditional CSS uses custom stylesheets with semantic class names. Tailwind eliminates context-switching between files, reduces CSS size through tree-shaking, and prevents specificity conflicts. Traditional CSS offers more semantic markup and easier global changes. Many teams use Tailwind with component frameworks where class repetition is managed through component abstraction.
How do I use custom values in Tailwind CSS?
Use arbitrary value syntax with square brackets: w-[37px], bg-[#1da1f2], or p-[13px]. DevBolt's generator includes presets for common UI patterns. The live preview updates as you add or remove classes. For frequently used custom values, define them in tailwind.config.js under theme.extend for reuse as proper named utilities across your project.

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