colorful button

<!DOCTYPE html>
<!--from https://www.bilibili.com/video/BV1cK4y1k7qGs-->
<html lang="en">
  <head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=divice-width, initial-scale=1.0">
    <title>Colorful Button</title>
  </head>
  <body>
    <a href="javascript:;">Colorful Button</a>
  </body>
  <style>
    *{
      margin: 0;
      padding: 0;
    }
    body{
      background: #000;
    }
    a{
      text-decoration: none;/*why set text-decoration as none?*/
      position:absolute;
      top: 50%;
      left: 50%;
      transform: translate(-50%, -50%);/*translate the button self*/
      font-size: 24px;
      background: linear-gradient(90deg, #03a9f4, #f441a5, #ffeb3b, #03a9f4);
      background-size: 400%;
      width: 400px;
      height: 100px;
      line-height: 100px;/*this means the height the text self */
      text-align: center;
      color: #fff;
      text-transform: capitalize;
      border-radius: 50px;/*make the profile round*/
      z-index: 1;
    }
    a::before{
      content: "";
      position: absolute;
      left: -5px;
      top: -5px;
      right: -5px;
      bottom: -5px;
      background: linear-gradient(90deg, #03a9f4, #f441a5, #ffeb3b, #03a9f4);
      background-size: 400%;
      border-radius: 50px;
      filter: blur(20px);
      z-index: -1;
    }
    a:hover::before, a:hover{
      animation: sun 8s infinite;
    }
    @keyframes sun{
      100%{
          background-position: -400% 0;
      }
    }
  </style>
</html>
link

demo
Last modified on 2020-05-01