The utility-first approach means using small, single-purpose classes that apply specific styles rather than semantic class names. Each utility class does one thing well.

Advantages:

• Faster development: No need to context-switch between HTML and CSS files
• Easier maintenance: Styles are co-located with markup
• No CSS bloat: No unused CSS accumulating over time
• Consistent spacing/colors: Built-in design system prevents inconsistencies
• Mobile-first responsive: Built-in responsive prefixes
• No naming conventions: No need to worry about BEM, OOCSS, etc.