第一节:伸缩发光的卡片html css伸缩发光的卡片，每周代码记录thanks everybody```````````

html

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
  <link rel="stylesheet" href="./index.css">
</head>
<body>
  <div class="box">
    <div class="imgBx">
      <img src="imgs/1.jpeg" alt="美女">
    </div>
    <div class="content"> 
      <h2>John Doe<br /><span>Creative Designer</span></h2>
    </div>
  </div>
  <div class="box">
    <div class="imgBx">
      <img src="imgs/2.jpeg" alt="美女">
    </div>
    <div class="content">
      <h2>John Doe<br /><span>Creative Designer</span></h2>
    </div>
  </div>
  <div class="box">
    <div class="imgBx">
      <img src="imgs/3.jpeg" alt="美女">
    </div>
    <div class="content">
      <h2>John Doe<br /><span>Creative Designer</span></h2>
    </div>
  </div>
</body>
</html>

css

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  min-height: 100vh;
  background-color: #010615;
}

.box {
  position: relative;
  width: 300px;
  height: 300px;
  display: flex;
  justify-content: center;
  align-items: center;
  margin: 40px;
  background: #060c21;
  transition: 0.5s;
}

.box:hover {
  height: 400px;
}

.box .imgBx {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  padding: 10px;
  box-sizing: border-box;
}

.box .imgBx img {
  max-width: 100%;
  opacity: 0.1;
  transition: 0.5s;
}

.box:hover .imgBx img {
  opacity: 1;
}

.box:before {
  content: '';
  position: absolute;
  top: -2px;
  left: -2px;
  right: -2px;
  bottom: -2px;
  background-color: #fff;
  z-index: -1;
}
.box:after {
  content: '';
  position: absolute;
  top: -2px;
  left: -2px;
  right: -2px;
  bottom: -2px;
  background-color: #fff;
  z-index: -2;
  filter: blur(40px);
}

.box:before,
.box:after {
  background: linear-gradient(235deg, #89ff00, #010615, #00bcd4);
}
.box:nth-child(2):before,
.box:nth-child(2):after {
  background: linear-gradient(235deg, #ff005e, #010615, #fbff00);
}
.box:nth-child(3):before,
.box:nth-child(3):after {
  background: linear-gradient(235deg, #772aff, #010615, #2196f3);
}

.box .content {
  position: absolute;
  bottom: 0;
  left: 10px;
  right: 10px;
  height: 90px;
  background: rgba(0, 0, 0, .4);
  display: flex;
  justify-content: center;
  align-items: center;
  text-align: center;
  opacity: 0;
  transition: 0.5s;
}

.box:hover .content {
  opacity: 1;
}

.box .content h2 {
  font-size: 20px;
  color: #fff;
  font-weight: 500;
  line-height: 20px;
  letter-spacing: 1px;
  font-weight: 500;
}

.box .content h2 span {
  font-size: 14px;
  color: #fff;
  letter-spacing: 2px;
  font-weight: 200;
}