How to invalidate css styles: First create an HTML sample file; then use the div tag to create a line of text and add css styles to the text; finally use the css comment "/* */" to invalidate the required Just comment the css code.
The operating environment of this article: Windows7 system, HTML5&&CSS3 version, Dell G3 computer.
Create a new html file, named test.html, to explain how to invalidate css in a certain area.
In the test.html file, use the div tag to create a line of text and set its class to dcss. It is mainly used to set the css style through this class below.
css video tutorial]
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