无意当中发现的学习网站

1.css参考手册

http://www.css88.com/book/css/properties/media-queries/height.htm

2.HTML Tricks

https://www.html5tricks.com/html5-canvas-circle-percentage.html

3.jquery之家

http://www.htmleaf.com/html5/html5-canvas/201705154511.html

4.博客

1）弹性盒子模型

http://www.ruanyifeng.com/blog/2015/07/flex-grammar.html

https://blog.csdn.net/mr_lp/article/details/50966842

https://www.ibm.com/developerworks/cn/web/1409_chengfu_css3flexbox/(特效)

https://www.w3.org/TR/css-flexbox-1/#flex-flow-property来自(W3C)

大漠：http://www.w3cplus.com/css3/flexboxgeng-jia-you-ya-de-webbu-ju.html

骰子：https://codepen.io/LandonSchropp/pen/KpzzGo

2)张鑫旭博客：https://www.zhangxinxu.com/

5.MDN Web docs

https://developer.mozilla.org/zh-CN/docs/Web/CSS/object-fit