JS在线编辑器
http://codepen.io/tmrDevelops/pen/bpLPxo
http://runjs.cn/code
https://jsfiddle.net/
个人博客:
http://www.dengzhr.com/
JS Loading动画效果
http://padolsey.github.io/sonic-creator/#flame
Canvas animation
https://www.kirupa.com/html5/creating_simple_html5_canvas_animation.htm