| <!doctype html> |
| <!-- |
| Any copyright is dedicated to the Public Domain. |
| http://creativecommons.org/publicdomain/zero/1.0/ |
| --> |
| <meta charset="utf-8"> |
| <title>CSS Test Reference</title> |
| <style> |
| body { |
| background: #f3f5f6; |
| } |
| |
| div { |
| font-size: 15px; |
| --width: 401px; |
| width: var(--width); |
| margin: 20px; |
| background: #fff; |
| display: flex; |
| flex-wrap: wrap; |
| } |
| |
| b { |
| height: 50px; |
| background: red; |
| width: calc((var(--width) - 4.5em) / 4); /* .5em gutters */ |
| } |
| |
| b:not(:last-child) { |
| margin-right: 1.5em; |
| } |
| </style> |
| <div><b></b><b></b><b></b><b></b></div> |
