Browser default styles

Styles the browser adds before yours, like blue links and heading sizes.

What are browser default styles?

Browser default styles are the styles every browser adds before yours: bold headings, blue links, margins around paragraphs. Your CSS builds on top of them.

body { margin: 0; }   /* remove the browser's default 8px page margin */

Level: Novice · More CSS terms at this level

Updated September 27, 2026