How to set the percentage width of div ​

This article mainly explains "how to set the div percentage width". The content in the article is simple and clear, and it is easy to learn and understand. Please follow the editor's train of thought to study and learn how to set the div percentage width.

Percentage width

Usage:

.wai {width:500px} .bfb {width:80%}

My width is 80%.

If the div width of the configured class=bfb is 80%, then the width of the div is the width of the parent class=wai * 80%, that is, 500*80%=400px.

Get 80% of class=bfb the width of div is 400px

The percentage width is also the adaptive width.

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