CSS
Cascading Style Sheets
In one sentenceThe language that controls how a web page looks: colors, fonts, spacing, layout, and how it adapts to phones.
What it means
CSS styles the HTML. One rule like "all buttons are purple with rounded corners" applies everywhere. Frameworks like Tailwind make styling faster.
How to use it
- Describe looks in plain words to AI ("more white space, bigger headline, purple buttons") and it will write the CSS.
- Always check a page on your phone. Most visitors are on mobile.
How AI helps
AI can match a design from a screenshot: upload a picture of a layout you like and ask for the HTML and CSS.
Related terms
HTML JavaScript Front End vs Back End
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