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Generates Tailwind-like utility CSS classes for spacing, colors, typography, layout, flexbox, grid, and responsive breakpoints. Outputs complete organized CSS file. Supports --categories, --config, --breakpoints.
How this command is triggered — by the user, by Claude, or both
Slash command
/fullstack-starter-pack:css-utility-generatorThe summary Claude sees in its command listing — used to decide when to auto-load this command
# CSS Utility Generator Generates utility CSS classes similar to Tailwind CSS for common styling needs, creating a custom utility-first CSS framework. ## What This Command Does **Utility Class Generation:** - Spacing utilities (margin, padding) - Color utilities (background, text, border) - Typography utilities (font size, weight, line height) - Layout utilities (flexbox, grid, display) - Responsive breakpoints - Custom design tokens **Output:** Complete utility CSS file with organized sections **Time:** 2-5 minutes --- ## Usage --- ## Example Output **Input:** **Generat...
Generates utility CSS classes similar to Tailwind CSS for common styling needs, creating a custom utility-first CSS framework.
Utility Class Generation:
Output: Complete utility CSS file with organized sections
Time: 2-5 minutes
# Generate full utility class system
/css-utility-generator
# Shortcut
/cug
# Generate specific categories
/cug --categories spacing,colors,typography
# Custom design tokens
/cug --config design-tokens.json
# With custom breakpoints
/cug --breakpoints mobile:640px,tablet:768px,desktop:1024px
Input:
/cug --categories spacing,colors,flex
Generated utilities.css:
/* ==========================================================================
Utility CSS Classes
Generated by CSS Utility Generator
========================================================================== */
/* Spacing Utilities
========================================================================== */
/* Margin */
.m-0 { margin: 0; }
.m-1 { margin: 0.25rem; } /* 4px */
.m-2 { margin: 0.5rem; } /* 8px */
.m-3 { margin: 0.75rem; } /* 12px */
.m-4 { margin: 1rem; } /* 16px */
.m-5 { margin: 1.25rem; } /* 20px */
.m-6 { margin: 1.5rem; } /* 24px */
.m-8 { margin: 2rem; } /* 32px */
.m-10 { margin: 2.5rem; } /* 40px */
.m-12 { margin: 3rem; } /* 48px */
.m-16 { margin: 4rem; } /* 64px */
.m-auto { margin: auto; }
/* Margin Top */
.mt-0 { margin-top: 0; }
.mt-1 { margin-top: 0.25rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-3 { margin-top: 0.75rem; }
.mt-4 { margin-top: 1rem; }
.mt-6 { margin-top: 1.5rem; }
.mt-8 { margin-top: 2rem; }
.mt-12 { margin-top: 3rem; }
/* Margin Right */
.mr-0 { margin-right: 0; }
.mr-1 { margin-right: 0.25rem; }
.mr-2 { margin-right: 0.5rem; }
.mr-3 { margin-right: 0.75rem; }
.mr-4 { margin-right: 1rem; }
.mr-6 { margin-right: 1.5rem; }
.mr-8 { margin-right: 2rem; }
.mr-auto { margin-right: auto; }
/* Margin Bottom */
.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: 0.25rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-3 { margin-bottom: 0.75rem; }
.mb-4 { margin-bottom: 1rem; }
.mb-6 { margin-bottom: 1.5rem; }
.mb-8 { margin-bottom: 2rem; }
.mb-12 { margin-bottom: 3rem; }
/* Margin Left */
.ml-0 { margin-left: 0; }
.ml-1 { margin-left: 0.25rem; }
.ml-2 { margin-left: 0.5rem; }
.ml-3 { margin-left: 0.75rem; }
.ml-4 { margin-left: 1rem; }
.ml-6 { margin-left: 1.5rem; }
.ml-8 { margin-left: 2rem; }
.ml-auto { margin-left: auto; }
/* Margin X-axis (horizontal) */
.mx-0 { margin-left: 0; margin-right: 0; }
.mx-1 { margin-left: 0.25rem; margin-right: 0.25rem; }
.mx-2 { margin-left: 0.5rem; margin-right: 0.5rem; }
.mx-4 { margin-left: 1rem; margin-right: 1rem; }
.mx-auto { margin-left: auto; margin-right: auto; }
/* Margin Y-axis (vertical) */
.my-0 { margin-top: 0; margin-bottom: 0; }
.my-1 { margin-top: 0.25rem; margin-bottom: 0.25rem; }
.my-2 { margin-top: 0.5rem; margin-bottom: 0.5rem; }
.my-4 { margin-top: 1rem; margin-bottom: 1rem; }
.my-8 { margin-top: 2rem; margin-bottom: 2rem; }
/* Padding */
.p-0 { padding: 0; }
.p-1 { padding: 0.25rem; }
.p-2 { padding: 0.5rem; }
.p-3 { padding: 0.75rem; }
.p-4 { padding: 1rem; }
.p-5 { padding: 1.25rem; }
.p-6 { padding: 1.5rem; }
.p-8 { padding: 2rem; }
.p-10 { padding: 2.5rem; }
.p-12 { padding: 3rem; }
/* Padding Top */
.pt-0 { padding-top: 0; }
.pt-1 { padding-top: 0.25rem; }
.pt-2 { padding-top: 0.5rem; }
.pt-4 { padding-top: 1rem; }
.pt-6 { padding-top: 1.5rem; }
.pt-8 { padding-top: 2rem; }
/* Padding Right */
.pr-0 { padding-right: 0; }
.pr-2 { padding-right: 0.5rem; }
.pr-4 { padding-right: 1rem; }
.pr-6 { padding-right: 1.5rem; }
.pr-8 { padding-right: 2rem; }
/* Padding Bottom */
.pb-0 { padding-bottom: 0; }
.pb-2 { padding-bottom: 0.5rem; }
.pb-4 { padding-bottom: 1rem; }
.pb-6 { padding-bottom: 1.5rem; }
.pb-8 { padding-bottom: 2rem; }
/* Padding Left */
.pl-0 { padding-left: 0; }
.pl-2 { padding-left: 0.5rem; }
.pl-4 { padding-left: 1rem; }
.pl-6 { padding-left: 1.5rem; }
.pl-8 { padding-left: 2rem; }
/* Padding X-axis */
.px-0 { padding-left: 0; padding-right: 0; }
.px-2 { padding-left: 0.5rem; padding-right: 0.5rem; }
.px-4 { padding-left: 1rem; padding-right: 1rem; }
.px-6 { padding-left: 1.5rem; padding-right: 1.5rem; }
.px-8 { padding-left: 2rem; padding-right: 2rem; }
/* Padding Y-axis */
.py-0 { padding-top: 0; padding-bottom: 0; }
.py-2 { padding-top: 0.5rem; padding-bottom: 0.5rem; }
.py-4 { padding-top: 1rem; padding-bottom: 1rem; }
.py-6 { padding-top: 1.5rem; padding-bottom: 1.5rem; }
.py-8 { padding-top: 2rem; padding-bottom: 2rem; }
/* Color Utilities
========================================================================== */
/* Background Colors */
.bg-white { background-color: #ffffff; }
.bg-gray-50 { background-color: #f9fafb; }
.bg-gray-100 { background-color: #f3f4f6; }
.bg-gray-200 { background-color: #e5e7eb; }
.bg-gray-300 { background-color: #d1d5db; }
.bg-gray-400 { background-color: #9ca3af; }
.bg-gray-500 { background-color: #6b7280; }
.bg-gray-600 { background-color: #4b5563; }
.bg-gray-700 { background-color: #374151; }
.bg-gray-800 { background-color: #1f2937; }
.bg-gray-900 { background-color: #111827; }
.bg-black { background-color: #000000; }
.bg-primary { background-color: #3b82f6; }
.bg-secondary { background-color: #6b7280; }
.bg-success { background-color: #10b981; }
.bg-danger { background-color: #ef4444; }
.bg-warning { background-color: #f59e0b; }
.bg-info { background-color: #3b82f6; }
.bg-transparent { background-color: transparent; }
/* Text Colors */
.text-white { color: #ffffff; }
.text-gray-50 { color: #f9fafb; }
.text-gray-100 { color: #f3f4f6; }
.text-gray-200 { color: #e5e7eb; }
.text-gray-300 { color: #d1d5db; }
.text-gray-400 { color: #9ca3af; }
.text-gray-500 { color: #6b7280; }
.text-gray-600 { color: #4b5563; }
.text-gray-700 { color: #374151; }
.text-gray-800 { color: #1f2937; }
.text-gray-900 { color: #111827; }
.text-black { color: #000000; }
.text-primary { color: #3b82f6; }
.text-secondary { color: #6b7280; }
.text-success { color: #10b981; }
.text-danger { color: #ef4444; }
.text-warning { color: #f59e0b; }
.text-info { color: #3b82f6; }
/* Flexbox Utilities
========================================================================== */
/* Display */
.flex { display: flex; }
.inline-flex { display: inline-flex; }
/* Flex Direction */
.flex-row { flex-direction: row; }
.flex-row-reverse { flex-direction: row-reverse; }
.flex-col { flex-direction: column; }
.flex-col-reverse { flex-direction: column-reverse; }
/* Flex Wrap */
.flex-wrap { flex-wrap: wrap; }
.flex-nowrap { flex-wrap: nowrap; }
.flex-wrap-reverse { flex-wrap: wrap-reverse; }
/* Justify Content */
.justify-start { justify-content: flex-start; }
.justify-end { justify-content: flex-end; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-around { justify-content: space-around; }
.justify-evenly { justify-content: space-evenly; }
/* Align Items */
.items-start { align-items: flex-start; }
.items-end { align-items: flex-end; }
.items-center { align-items: center; }
.items-baseline { align-items: baseline; }
.items-stretch { align-items: stretch; }
/* Align Self */
.self-auto { align-self: auto; }
.self-start { align-self: flex-start; }
.self-end { align-self: flex-end; }
.self-center { align-self: center; }
.self-stretch { align-self: stretch; }
/* Gap */
.gap-0 { gap: 0; }
.gap-1 { gap: 0.25rem; }
.gap-2 { gap: 0.5rem; }
.gap-3 { gap: 0.75rem; }
.gap-4 { gap: 1rem; }
.gap-6 { gap: 1.5rem; }
.gap-8 { gap: 2rem; }
/* Flex Grow/Shrink */
.flex-1 { flex: 1 1 0%; }
.flex-auto { flex: 1 1 auto; }
.flex-initial { flex: 0 1 auto; }
.flex-none { flex: none; }
.flex-grow { flex-grow: 1; }
.flex-grow-0 { flex-grow: 0; }
.flex-shrink { flex-shrink: 1; }
.flex-shrink-0 { flex-shrink: 0; }
/* Responsive Breakpoints
========================================================================== */
@media (min-width: 640px) {
/* sm: spacing */
.sm\:m-0 { margin: 0; }
.sm\:m-4 { margin: 1rem; }
.sm\:p-4 { padding: 1rem; }
/* sm: flexbox */
.sm\:flex { display: flex; }
.sm\:flex-row { flex-direction: row; }
.sm\:justify-center { justify-content: center; }
}
@media (min-width: 768px) {
/* md: spacing */
.md\:m-0 { margin: 0; }
.md\:m-6 { margin: 1.5rem; }
.md\:p-6 { padding: 1.5rem; }
/* md: flexbox */
.md\:flex { display: flex; }
.md\:flex-row { flex-direction: row; }
.md\:justify-between { justify-content: space-between; }
}
@media (min-width: 1024px) {
/* lg: spacing */
.lg\:m-0 { margin: 0; }
.lg\:m-8 { margin: 2rem; }
.lg\:p-8 { padding: 2rem; }
/* lg: flexbox */
.lg\:flex { display: flex; }
.lg\:flex-row { flex-direction: row; }
.lg\:gap-8 { gap: 2rem; }
}
/* Scale: 0, 1, 2, 3, 4, 5, 6, 8, 10, 12, 16, 20, 24 */
/* Directions: all, t, r, b, l, x, y */
.m-4 /* margin: 1rem */
.mt-2 /* margin-top: 0.5rem */
.px-4 /* padding-left/right: 1rem */
.my-8 /* margin-top/bottom: 2rem */
/* Font Size */
.text-xs { font-size: 0.75rem; }
.text-sm { font-size: 0.875rem; }
.text-base { font-size: 1rem; }
.text-lg { font-size: 1.125rem; }
.text-xl { font-size: 1.25rem; }
.text-2xl { font-size: 1.5rem; }
.text-3xl { font-size: 1.875rem; }
.text-4xl { font-size: 2.25rem; }
/* Font Weight */
.font-thin { font-weight: 100; }
.font-light { font-weight: 300; }
.font-normal { font-weight: 400; }
.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }
.font-extrabold { font-weight: 800; }
/* Text Align */
.text-left { text-align: left; }
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-justify { text-align: justify; }
/* Line Height */
.leading-none { line-height: 1; }
.leading-tight { line-height: 1.25; }
.leading-normal { line-height: 1.5; }
.leading-relaxed { line-height: 1.75; }
.leading-loose { line-height: 2; }
/* Display */
.block { display: block; }
.inline { display: inline; }
.inline-block { display: inline-block; }
.flex { display: flex; }
.inline-flex { display: inline-flex; }
.grid { display: grid; }
.hidden { display: none; }
/* Position */
.static { position: static; }
.relative { position: relative; }
.absolute { position: absolute; }
.fixed { position: fixed; }
.sticky { position: sticky; }
/* Width */
.w-auto { width: auto; }
.w-full { width: 100%; }
.w-screen { width: 100vw; }
.w-1\/2 { width: 50%; }
.w-1\/3 { width: 33.333333%; }
.w-1\/4 { width: 25%; }
/* Height */
.h-auto { height: auto; }
.h-full { height: 100%; }
.h-screen { height: 100vh; }
/* Grid Template Columns */
.grid-cols-1 { grid-template-columns: repeat(1, minmax(0, 1fr)); }
.grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.grid-cols-6 { grid-template-columns: repeat(6, minmax(0, 1fr)); }
.grid-cols-12 { grid-template-columns: repeat(12, minmax(0, 1fr)); }
/* Grid Gap */
.gap-0 { gap: 0; }
.gap-2 { gap: 0.5rem; }
.gap-4 { gap: 1rem; }
.gap-6 { gap: 1.5rem; }
.gap-8 { gap: 2rem; }
/* Border Width */
.border-0 { border-width: 0; }
.border { border-width: 1px; }
.border-2 { border-width: 2px; }
.border-4 { border-width: 4px; }
/* Border Radius */
.rounded-none { border-radius: 0; }
.rounded-sm { border-radius: 0.125rem; }
.rounded { border-radius: 0.25rem; }
.rounded-md { border-radius: 0.375rem; }
.rounded-lg { border-radius: 0.5rem; }
.rounded-xl { border-radius: 0.75rem; }
.rounded-full { border-radius: 9999px; }
/* Border Color */
.border-gray-200 { border-color: #e5e7eb; }
.border-gray-300 { border-color: #d1d5db; }
.border-primary { border-color: #3b82f6; }
/* Shadow */
.shadow-none { box-shadow: none; }
.shadow-sm { box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.05); }
.shadow { box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06); }
.shadow-md { box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06); }
.shadow-lg { box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05); }
.shadow-xl { box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04); }
/* Opacity */
.opacity-0 { opacity: 0; }
.opacity-25 { opacity: 0.25; }
.opacity-50 { opacity: 0.5; }
.opacity-75 { opacity: 0.75; }
.opacity-100 { opacity: 1; }
<div class="bg-white rounded-lg shadow-md p-6 mb-4">
<h2 class="text-2xl font-bold mb-2 text-gray-900">Card Title</h2>
<p class="text-gray-600 mb-4">Card description goes here.</p>
<button class="bg-primary text-white px-4 py-2 rounded">
Action
</button>
</div>
<div class="flex justify-between items-center p-4 bg-gray-50">
<div class="flex items-center gap-2">
<img src="logo.png" class="w-8 h-8" />
<span class="font-semibold">Brand</span>
</div>
<nav class="flex gap-4">
<a href="#" class="text-gray-700">Home</a>
<a href="#" class="text-gray-700">About</a>
<a href="#" class="text-gray-700">Contact</a>
</nav>
</div>
<div class="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-3 gap-6 p-8">
<div class="bg-white p-4 rounded shadow">Item 1</div>
<div class="bg-white p-4 rounded shadow">Item 2</div>
<div class="bg-white p-4 rounded shadow">Item 3</div>
</div>
design-tokens.json:
{
"colors": {
"primary": "#3b82f6",
"secondary": "#6b7280",
"success": "#10b981",
"danger": "#ef4444",
"warning": "#f59e0b"
},
"spacing": {
"scale": [0, 4, 8, 12, 16, 20, 24, 32, 40, 48, 64]
},
"typography": {
"fontSizes": {
"xs": "0.75rem",
"sm": "0.875rem",
"base": "1rem",
"lg": "1.125rem",
"xl": "1.25rem",
"2xl": "1.5rem"
},
"fontWeights": {
"normal": 400,
"medium": 500,
"semibold": 600,
"bold": 700
}
},
"breakpoints": {
"sm": "640px",
"md": "768px",
"lg": "1024px",
"xl": "1280px"
}
}
1. No Build Step Required
2. Familiar Syntax
3. Customizable
4. Lightweight
5. Framework Agnostic
<link rel="stylesheet" href="utilities.css">
@import url('utilities.css');
import './utilities.css'
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