What is the difference between style import and link?

The differences between import and link introduced by the style include "syntax and location", "loading method", "compatibility" and "control": 1. Import is a CSS rule and appears in the CSS file. at the top, and use the @import keyword, and is an HTML tag, usually located in the element, and uses a self-closing form; 2. import only loads the introduced style sheet when the CSS file is loaded and parsed. And will load and parse external styles and so on at the same time when the page loads.

# Operating system for this tutorial: Windows 10 system, Dell G3 computer.

and @import are both methods for introducing external style sheets, but they have some differences.

1. Syntax and position: is an HTML tag, usually located in the element and uses a self-closing form. Its syntax is as follows:

<link rel="stylesheet" href="style.css">

And @import is a CSS rule that usually appears at the top of the CSS file and uses the @import keyword. Its syntax is as follows:

@import url("style.css");

2. Loading method: The tag will load and parse the external style sheet at the same time when the page is loaded, and it supports parallel loading, which can improve the loading speed of web pages. . @import will only load the imported style sheet when the CSS file is loaded and parsed, which may cause the page to load slower.

3. Compatibility: is supported in all modern browsers, while @import is not fully supported in older browsers (especially IE6-IE9) .

4. Controllability: Use to directly specify multiple style sheets in the HTML page, and control the application of style sheets on different media devices through the media attribute. And @import can only introduce style sheets into CSS files.

In general, it is recommended to use the tag to introduce external style sheets because it has better performance and wider browser compatibility. @import is suitable for specific situations, such as dynamically introducing other style sheets in CSS files or needing to implement some specific loading order requirements.

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