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This article mainly shows you "what is the meaning of hack in CSS". It is easy to understand and clear. I hope it can help you solve your doubts. Let me lead you to study and learn this article "what does hack mean in CSS?"

Definition of hack:

Hack is due to different browsers of different manufacturers, such as InternetExplorer,Firefox,Chrome, or different versions of browsers of the same manufacturer, support for CSS is different, so the page effect generated is also different. At this time, we need to write different CSS for different browsers, so that it can be compatible with different browsers at the same time, and we can get the page effect we want in different browsers. In other words, the purpose of hack is to make your CSS code compatible with different browsers

For example, when we write the CSS3 property, we often encounter different code for different browsers, as shown below

Animation:5s;/* Standard Edition * /-moz-animation:5s;/*Firefox*/-webkit-animation:5s;/*Safari and Chrome*/-Omura Animation webkit-animation:5s;/*Safari 5s

! important question:

There is a problem with the! important identifier in InternetExplorer6 and below, which can cause the identifier to be ignored if another style of the same attribute appears in the same style declaration block. This can be used to provide special property values that InternetExplorer6 and other browsers ignore. But in InternetExplorer7 and above, this problem does not exist.

P {background, green, important; background:red;}

Test

We can use the F12 debugging tool on the IE browser to switch the version of IE to see how it works.

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