使用哪个图标库就引入哪个css文件并把字体图标文件放到相应路径下
@import url("https://fonts.googleapis.com/css?family=Rubik:300,400,500,700,900");
@import url(icons/font-awesome/css/fontawesome-all.css);
@import url(icons/simple-line-icons/css/simple-line-icons.css);
@import url(icons/weather-icons/css/weather-icons.min.css);
@import url(icons/themify-icons/themify-icons.css);
@import url(icons/flag-icon-css/flag-icon.min.css);
@import url(icons/material-design-iconic-font/css/materialdesignicons.min.css);
@import url(icons/crypto-icons/cryptocoins.css);
