1. loading效果收集 https://www.qianduan.net/free-html5-css3-loaders-preloaders/
2. telephone link : https://css-tricks.com/the-current-state-of-telephone-links/ href='rel:13521351743'
3. w3c role属性内容: https://www.w3.org/TR/wai-aria/appendices#quickref
4. flex布局介绍文章: https://css-tricks.com/snippets/css/a-guide-to-flexbox/
5. AMD模块加载 https://github.com/amdjs/amdjs-api/wiki/AMD
6.CMD(seajs)模块加载方法 https://github.com/seajs/seajs/issues/242
7.display:grid 布局方法 https://css-tricks.com/snippets/css/complete-guide-grid/
8. css contain 隔绝reflow的方法：https://justmarkup.com/log/2016/04/css-containment/
draft位置：https://drafts.csswg.org/css-containment-3/