What are the common errors in css styles?

css style errors include: 1. Not associated with an external style sheet; 2. The coding error when saving the style sheet; 3. Wrong selection of the selector; 4. Syntax errors, such as wrong attribute names and inconsistent attribute values. Standard, use Chinese or full-width symbols, etc.

The operating environment of this tutorial: Windows 7 system, CSS3&&HTML5 version, Dell G3 computer.

Common css style errors

1. Not associated with external style sheet

This is a very speechless error, but I did encounter it before I've been here before, I worked hard to write the code, and found that none of the styles took effect. I worked stupidly for a long time, and finally found that I forgot to associate the external style. I felt really bad at that time. .

If all your styles do not take effect, first confirm whether the style sheet is associated, or whether the associated style position and name are correct

<link rel="stylesheet" href="css/index.css"/>

2. Style Encoding error in table saving

If you suspect that the encoding of the CSS table is incorrect, you can directly save the css file as a file in UTF-8 encoding.

3. Wrong selection of selector If the order and name of the selectors are written incorrectly, errors may occur; the tags in

• #html forget to write the class name and id, and the selector uses these missed class names, id, etc., the style will naturally not take effect.

• Whether the descendant selector is written with spaces;

• Will selectors like p.box{} be written as p. box{}, that is, an extra space is written

• 4. Syntax error

1), wrong attribute name, attribute value does not comply with the specification;
2), the following symbols use Chinese or full-width symbols:

，；｛｝：

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