响应式布局
meta:vp
IE:
meta:compat
col-xs-
col-sm-
col-md-
col-lg-
col--push-
col--pull-
清除浮动
col--offset-
hidden-xs
visible-xs
导航栏目
navbar-fixed-bottom
navbar-fixed-top
navbar-static-top
https://placeholder.com/
google-code-prettify
cdn加速
cdn.code.baidu.com
http://plugins.jquery.com/singlepagenav/
https://daneden.github.io/animate.css/
https://blog.csdn.net/u011127019/article/details/77165062
chartjs.org
bootstrap模版
https://bootswatch.com
https://icomoon.io/