常理来说应该是 content: url(雪碧图路径) 这样的写法，而我看到很多website都是利用伪元素content属性设置为16进制的字符串来实现小图标的。这种技术具体怎么实现？
content: url(雪碧图路径)
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Documents that reference text ico, such as https://icomoon.io/
As shown below:
This site uses the Font-Awesome css icon library. The icon library also uses other fonts.
Font-Awesome css icon
icon
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
Documents that reference text ico, such as https://icomoon.io/
As shown below:
This site uses the
Font-Awesome css iconlibrary. Theiconlibrary also uses other fonts.