1. Tippy.js
background: linear-gradient(91deg,#f1eefc,#9dc6ff 70%,#a5bcff);(body背景色) background: linear-gradient(135deg,#56c8ff,#6f99fc) no-repeat;(button背景色)
css3好看的background渐变背景色积累
原文:https://www.cnblogs.com/knuzy/p/10045655.html