• FormData使用方法

• javascript中原型继承和类的模拟

* [[http://www.smashingmagazine.com/2013/08/09/absolute-horizontal-vertical-centering-css/|css垂直居中-absolute-horizontal-vertical-centering-css]]

* [[http://demo.doyoe.com/css/alignment/|未知尺寸元素水平垂直居中]]

* [[http://stackoverflow.com/questions/5623838/rgb-to-hex-and-hex-to-rgb|javascript hex2rgb]]

* [[http://stackoverflow.com/questions/9756120/how-do-i-get-a-utc-timestamp-in-javascript|get a utc timestamp quickly]]

* [[https://stackoverflow.com/questions/21688613/gulp-returns-0-when-tasks-fail/22314118#22314118|gulp-returns-0-when-tasks-fail]]