Why can’t css hack be used more often?

The reasons why css hack cannot be used more often: 1. In order to be compatible with CSS parsing bugs of lower version browsers, CSS hack has to write very convoluted code, which directly increases maintenance costs; 2. Now many hacks have been abandoned The original principle is violated, and the abuse of hacks will lead to more compatibility problems after the browser is updated.

The operating environment of this tutorial: Windows 7 system, CSS3 version, Dell G3 computer.

CSS hack allows different browsers to recognize different symbols by adding some special symbols to CSS styles (there are standards for what browsers recognize what symbols. CSS hack allows you to Remember this standard), to achieve the purpose of applying different CSS styles.

CSS hack is a remedy method adopted in order to be compatible with various browsers because existing browsers have different parsing of standards. In order to be compatible with CSS parsing bugs in lower version browsers, the code had to be written in a convoluted way, which directly increased maintenance costs.

CSS hack is a method similar to cheating, which achieves compatibility by deceiving the browser. It uses the compatibility differences of the browser to solve the browser compatibility problem. Therefore, at the beginning of the design, writing CSS hack needs to follow the following three principles:

• Effective: able to pass the verification of web standards

• Only for Too old / no longer developed / abandoned browser, instead of the current mainstream browser

• The code should be ugly, let people remember that this is a last resort Hack, always remember to find a way to get rid of it.

Now many hacks have abandoned the original principles, and the abuse of hacks will lead to more compatibility problems after the browser is updated. . Therefore, using CSS hacks to resolve compatibility issues is not recommended.

(Learning video sharing: css video tutorial)

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