Why do css attributes need to be prefixed?

The reason for prefixing css attributes: Although browser manufacturers have been implementing CSS3 before, it has not yet become a true standard. Therefore, when some CSS3 style syntax fluctuates, they need to provide browser-specific prefixes.

Cause analysis:

Although browser manufacturers have been implementing CSS3 before, it has not yet become a true standard. For this reason, some CSS3 style syntaxes need to provide browser-specific prefixes while they still exist.

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The main popular browser kernels are:

• Trident Kernel: Mainly represented by IE browser

• ##Gecko kernel: Mainly represented by Firefox

##Presto kernel: Mainly represented by Opera
Webkit kernel: Product representatives are Chrome and Safari
And for browsers with different cores, CSS3 attributes (some attributes that need to be prefixed) correspond to the needs Adding different prefixes is also called the browser's private prefix. The CSS3 properties after adding the private prefix can be said to correspond to the browser's private properties:

Trident kernel: The prefix is ​​-ms
Gecko kernel: The prefix is ​​-moz
Presto kernel: The prefix is ​​-o
Webkit kernel: The prefix is ​​-webkit
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