HTML&CSS - border-box - JSFiddle - React, Tailwind, and code Playground

<div style="background-color: lightblue; width: 200px; height: 100px;"> <div style="background-color: blue; width: 100%; padding: 10px; border: 10px solid orange;box-sizing: border-box;"> Hello world </div> </div>

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HTML&CSS - border-box

HTML

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Join the 4+ million users, and keep the JSFiddle dream alive.

Ad-free

Use pre-released features

Fiddle collections

Private collections and fiddles

Console