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Editor to share with you how css changes the frame when the button is clicked, I believe most people don't know much about it, so share this article for your reference. I hope you can learn a lot after reading this article. Let's learn about it together.

In css, you can use the ": active" selector and the border attribute to modify the border effect when the button is clicked. The syntax is "button element: active {border: border weight value solid color value}".

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

In css, you can use the: active selector and the border property to modify the border when the button is clicked.

The active selector is used to select and style the element when it is clicked, and the border attribute is used to style the border of the element.

Examples are as follows:

Document button {width:100px; height:50px; border-radius:25px; border:5px solid red;} button:active {border:5px solid pink;} button

Output result:

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