content: "2b" 是什么意思?_html/css_WEB-ITnose
图片 css
.micon-screen:before {content: "\2b";}
然后竟然有图标出现,但是一直没有找到图片的具体位置
网上查了下 content before 的用法,但是还是不明白“\2b”的啥意思
回复讨论(解决方案)
一个16进制的数,对应这种字体下的某个字符。
如果是普通西文字符,Arial等等,2b这个编码视为单字节的ascii码,2b是10进制的43,查ascii码表得这个字符是“+”号。
如果是特殊字体,例如:font-awesome字体,这种字体没有文字,全部记录的是字符。使用字符字体有矢量放大,color属性继承等优点。
看看这个, font-awesome,这里的图标全部都是用字符字体,用的就是content:'\f000'这种,因为用输入法打不出来,只能用转义字符,其实也就是字符内码。

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