Bootstrap是一个开源框架,是对htmlcssjsjquery等的封装,用法,复制黏贴一把梭.
网址: https://www.bootcss.com/
font-awesome http://www.fontawesome.com.cn/
iconfont: https://www.iconfont.cn/search/index?q=%E5%BE%AE%E4%BF%A1