UI Kits
What is Utility Class?
A single CSS class that does exactly one thing, like `font-bold`, `mt-4`, or `flex`. You combine many utility classes to build a full style without writing custom CSS.
Learn this term every day on iPhone.
One hand-written term. A real workplace example. Thirty seconds before your day gets loud.
In real work
Use only utility classes. No wrapper classes or custom CSS. Compose layout with flex, gap, and padding utilities.
How is this different from Googling it?
Google gives a definition. Prompthaus pairs each term with how it shows up in standups, PRs, prompts, and design reviews—then quizzes you until the word sticks. One term a day on iPhone.