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Today, I would like to share with you the relevant knowledge points of tips instance analysis in CSS. The content is detailed and the logic is clear. I believe most people still know too much about this knowledge, so share this article for your reference. I hope you can get something after reading this article. Let's take a look at it.

When the elements margin-top, margin-bottom and padding-top, padding-bottom use percentage units, they are relative to the width width of the parent element, rather than the height height we imagined.

two。 When there is a positioning attribute element, the top and bottom units are the percentage, which is the height height relative to the parent element. Left and right are relative parent element width width.

3. Border width must not be expressed as a percentage.

4.width100%

When there are absolutely positioned child elements in the parent container, the child element setting width:100% actually refers to the width relative to the parent container padding+content.

These are all the contents of the article "tips case Analysis in CSS". Thank you for reading! I believe you will gain a lot after reading this article. The editor will update different knowledge for you every day. If you want to learn more knowledge, please pay attention to the industry information channel.

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