How to realize frame bulge by css3

Editor to share with you how css3 to achieve frame protuberance, I believe that most people do not know much about it, so share this article for your reference, I hope you can learn a lot after reading this article, let's go to know it!

In css, you can use the "border-style" attribute to implement the border bulge style, which is used to style the element border. When the value of the attribute is "outset", you can set the element border to bulge and the syntax is "element {border-style:outset;}".

The operating environment of this tutorial: windows10 system, CSS3&&HTML5 version, Dell G3 computer.

In css, you don't want to implement the style of border bulges, you need to take advantage of the border-style attribute.

The border-style property is used to style all borders of an element, or to style borders individually for each edge.

When the property value is set to outset, the 3D outset border, which is the style of the bulge, is defined

Examples are as follows:

Document div {width:100px; height:100px; background-color:pink; border-style:outset; border-width:5px;}

Output result:

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