UI颜色值
http://xh.5156edu.com/page/z1015m9220j18754.html
http://www.uisdc.com/ui-design-color-matching
渐变色合集
http://uigradients.com/#80%27sPurple
http://uigradients.com/#ClearSky
http://uigradients.com/#
点左右 切换看不同的模板
14px 四号
<section id="learning-path-intro" style="background-image: linear-gradient(to left,#3272D2 45%,#CDDCF4 110%);">