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This article mainly explains "how to add a frame on the three sides of div". The content of the explanation in the article is simple and clear, and it is easy to learn and understand. now please follow the editor's train of thought to slowly deepen, together to study and learn "div three sides how to add a frame" bar!

1. Dry wood

First set the border value, that is, set the equipment decoration object 4 sides have a border, that div edge does not need to configure the border, then set the equipment equipment border value to 0.

2. Incomplete HTML source code

Www.CSS5.com.cn. A-san {border:3px solid # F00; border-bottom:0} has borders on three sides and no borders on the other side

The bottom border of the configuration has no border, and the other three sides configure the border. -- the lower border does not set the border.

3. Screenshot

4, to express the urgent attention, first configure 4-sided CSS, and then configure to remove the frame pattern, how the browser end, when reading from left to right, can match the structural results of the first 4 sides and then the missing side. Operate the trick that the client read the replacement code from left to right.

Thank you for your reading, the above is the content of "how to add a frame on the three sides of div". After the study of this article, I believe you have a deeper understanding of how to add a frame on the three sides of Div, and the specific use needs to be verified in practice. Here is, the editor will push for you more related knowledge points of the article, welcome to follow!

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