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This article mainly introduces "how to solve CSS failure". In daily operation, I believe many people have doubts about how to solve the problem of CSS failure. The editor consulted all kinds of data and sorted out simple and easy-to-use operation methods. I hope it will be helpful for you to answer the doubt of "how to solve CSS failure"! Next, please follow the editor to study!

If you do not use or increase the DOCTYPE tag in HTML, the entire HTML CSS will be invalidated.

Assuming that your CSS is correct and the links are not degenerated, why doesn't the CSS style work? You are probably worried about this matter, hehe, don't be negative, I used to be overdone by this matter. At this time, you need to check whether there is the following sentence at the top of your web page?

Some friends may say that it is useless for me to get rid of it after I built a new web page. It is wrong for me to give a speech to you at the moment. In that case, what is the meaning of this sentence at last, and what is its function?

No more nonsense. I don't understand any concepts or terms. Just say what's the use of it.

Everyone can take a look at the differences in the above three lines of code, which represent three different XHTML document types.

Transitional type: refers to a transitional type, the application of this type of hunting device for XHTML synthesis is relatively loose, allowing the use of tags in HTML4.01, but must be consistent with the syntax of XHTML. This is the way to make popular movies, and this is the type of acquiescence when creating web pages with dreamweaver.

Strict type: severe type, the hunting device will be absolutely severe when used, and you are not allowed to apply any identifiers and attributes that reveal the content, such as the direct use of bgcolor post-color attributes in elements.

Frameset type: frame page type, if the web page uses a frame organ, it is necessary to apply what kind of document reputation.

After the introduction of the basic situation, we now know why CSS doesn't work. Don't look at such a sentence, you can't ignore it!

Although CSS5 summarization is the easiest to simplify DOCTYPE, regardless of the version of HTML, the practical code is as follows:

Simplified html DOCTYPE code is fine. Whether HTML4 is HTML5 as usual, PC computer browsers are still compatible with mobile phone hunters.

At this point, the study on "how to solve CSS failure" is over. I hope to be able to solve your doubts. The collocation of theory and practice can better help you learn, go and try it! If you want to continue to learn more related knowledge, please continue to follow the website, the editor will continue to work hard to bring you more practical articles!

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