Styling with Tailwind CSS

Quick Start

// Button with variants using utility classes
export function Button({ variant = 'primary', size = 'md', children }: ButtonProps) {
  const base = 'inline-flex items-center justify-center font-medium rounded-lg transition-colors focus:outline-none focus:ring-2 focus:ring-offset-2 disabled:opacity-50';
  const variants = {
    primary: 'bg-blue-600 text-white hover:bg-blue-700 focus:ring-blue-500',
    outline: 'border-2 border-blue-600 text-blue-600 hover:bg-blue-50 focus:ring-blue-500',
    ghost: 'text-gray-700 hover:bg-gray-100 dark:text-gray-300 dark:hover:bg-gray-800',
  };
  const sizes = { sm: 'px-3 py-1.5 text-sm', md: 'px-4 py-2', lg: 'px-6 py-3 text-lg' };

  return (
    <button className={`${base} ${variants[variant]} ${sizes[size]}`}>
      {children}
    </button>
  );
}

Features

Common Patterns

Responsive Card Grid

export function CardGrid({ children }: { children: React.ReactNode }) {
  return (
    <div className="grid grid-cols-1 sm:grid-cols-2 lg:grid-cols-3 xl:grid-cols-4 gap-4 md:gap-6">
      {children}
    </div>
  );
}

export function Card({ children, hoverable }: { children: React.ReactNode; hoverable?: boolean }) {
  return (
    <div className={cn(
      'bg-white dark:bg-gray-800 rounded-xl shadow-sm border border-gray-200 dark:border-gray-700 p-6',
      hoverable && 'hover:shadow-lg hover:-translate-y-1 transition-all duration-200'
    )}>
      {children}
    </div>
  );
}

Dark Mode Toggle

export function DarkModeToggle() {
  const [isDark, setIsDark] = useState(false);

  useEffect(() => {
    const dark = localStorage.theme === 'dark' ||
      (!localStorage.theme && window.matchMedia('(prefers-color-scheme: dark)').matches);
    setIsDark(dark);
    document.documentElement.classList.toggle('dark', dark);
  }, []);

  const toggle = () => {
    setIsDark(!isDark);
    document.documentElement.classList.toggle('dark', !isDark);
    localStorage.theme = !isDark ? 'dark' : 'light';
  };

  return (
    <button onClick={toggle} className="p-2 rounded-lg text-gray-500 hover:bg-gray-100 dark:hover:bg-gray-800">
      {isDark ? <SunIcon className="h-5 w-5" /> : <MoonIcon className="h-5 w-5" />}
    </button>
  );
}

Conditional Classes with cn()

import { clsx, type ClassValue } from 'clsx';
import { twMerge } from 'tailwind-merge';

export function cn(...inputs: ClassValue[]) {
  return twMerge(clsx(inputs));
}

// Usage
<div className={cn(
  'px-4 py-2 rounded-lg',
  isActive && 'bg-blue-500 text-white',
  isDisabled && 'opacity-50 cursor-not-allowed',
  className
)} />

Best Practices