Multiple style buttons

Code:

<!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>
</head>
<body>
  <div class="frame">
    <button class="custom-btn btn-1">按钮1</button>
    <button class="custom-btn btn-2">按钮2</button>
    <button class="custom-btn btn-3"><span>按钮3</span></button>
    <button class="custom-btn btn-4"><span>按钮4</span></button>
    <button class="custom-btn btn-5"><span>按钮5</span></button>
    <button class="custom-btn btn-6"><span>按钮6</span></button>
    <button class="custom-btn btn-7"><span>按钮7</span></button>
    <button class="custom-btn btn-8"><span>按钮8</span></button>
    <button class="custom-btn btn-9">按钮9</button>
    <button class="custom-btn btn-10">按钮10</button>
    <button class="custom-btn btn-11">按钮11<div class="dot"></div></button>
    <button class="custom-btn btn-12"><span>Click!</span><span>按钮12</span></button>
    <button class="custom-btn btn-13">按钮13</button>
    <button class="custom-btn btn-14">按钮14</button>
    <button class="custom-btn btn-15">按钮15</button>
    <button class="custom-btn btn-16">按钮16</button>
    <hr>
  </div>
  
  <script>
    function compare(properName) {
    
    
      return function(obj1, obj2) {
    
    
        let val1 = obj1[properName]
        let val2  =obj2[properName]
        if (val1 < val2) {
    
    
          return -1
        } else if (val1 > val2) {
    
    
          return 1
        } else {
    
    
          return 0
        }
      }
    }

    let arr = [
      {
    
    name: 'hahah', age: 2},
      {
    
    name: 'aaaaa', age: 10}
    ]
    arr.sort(compare('age'))
    console.log('arr', arr)
  </script>
  
  <style>
    body {
    
    
      background: #e0e5ec;
    }
    h1 {
    
    
      position: relative;
      text-align: center;
      color: #353535;
      font-size: 50px;
      font-family: "Cormorant Garamond", serif;
    }

    p {
    
    
      font-family: 'Lato', sans-serif;
      font-weight: 300;
      text-align: center;
      font-size: 18px;
      color: #676767;
    }
    .frame {
    
    
      width: 90%;
      margin: 40px auto;
      text-align: center;
    }
    button {
    
    
      margin: 20px;
    }
    .custom-btn {
    
    
      width: 130px;
      height: 40px;
      color: #fff;
      border-radius: 5px;
      padding: 10px 25px;
      font-family: 'Lato', sans-serif;
      font-weight: 500;
      background: transparent;
      cursor: pointer;
      transition: all 0.3s ease;
      position: relative;
      display: inline-block;
      box-shadow:inset 2px 2px 2px 0px rgba(255,255,255,.5),
      7px 7px 20px 0px rgba(0,0,0,.1),
      4px 4px 5px 0px rgba(0,0,0,.1);
      outline: none;
    }
    /* 1 */
    .btn-1 {
    
    
      background: rgb(6,14,131);
      background: linear-gradient(0deg, rgba(6,14,131,1) 0%, rgba(12,25,180,1) 100%);
      border: none;
    }
    .btn-1:hover {
    
    
      background: rgb(0,3,255);
    background: linear-gradient(0deg, rgba(0,3,255,1) 0%, rgba(2,126,251,1) 100%);
    }

    /* 2 */
    .btn-2 {
    
    
      background: rgb(96,9,240);
      background: linear-gradient(0deg, rgba(96,9,240,1) 0%, rgba(129,5,240,1) 100%);
      border: none;
      
    }
    .btn-2:before {
    
    
      height: 0%;
      width: 2px;
    }
    .btn-2:hover {
    
    
      box-shadow:  4px 4px 6px 0 rgba(255,255,255,.5),
                  -4px -4px 6px 0 rgba(116, 125, 136, .5), 
        inset -4px -4px 6px 0 rgba(255,255,255,.2),
        inset 4px 4px 6px 0 rgba(0, 0, 0, .4);
    }


    /* 3 */
    .btn-3 {
    
    
      background: rgb(0,172,238);
    background: linear-gradient(0deg, rgba(0,172,238,1) 0%, rgba(2,126,251,1) 100%);
      width: 130px;
      height: 40px;
      line-height: 42px;
      padding: 0;
      border: none;
      
    }
    .btn-3 span {
    
    
      position: relative;
      display: block;
      width: 100%;
      height: 100%;
    }
    .btn-3:before,
    .btn-3:after {
    
    
      position: absolute;
      content: "";
      right: 0;
      top: 0;
      background: rgba(2,126,251,1);
      transition: all 0.3s ease;
    }
    .btn-3:before {
    
    
      height: 0%;
      width: 2px;
    }
    .btn-3:after {
    
    
      width: 0%;
      height: 2px;
    }
    .btn-3:hover{
    
    
      background: transparent;
      box-shadow: none;
    }
    .btn-3:hover:before {
    
    
      height: 100%;
    }
    .btn-3:hover:after {
    
    
      width: 100%;
    }
    .btn-3 span:hover{
    
    
      color: rgba(2,126,251,1);
    }
    .btn-3 span:before,
    .btn-3 span:after {
    
    
      position: absolute;
      content: "";
      left: 0;
      bottom: 0;
      background: rgba(2,126,251,1);
      transition: all 0.3s ease;
    }
    .btn-3 span:before {
    
    
      width: 2px;
      height: 0%;
    }
    .btn-3 span:after {
    
    
      width: 0%;
      height: 2px;
    }
    .btn-3 span:hover:before {
    
    
      height: 100%;
    }
    .btn-3 span:hover:after {
    
    
      width: 100%;
    }

    /* 4 */
    .btn-4 {
    
    
      background-color: #4dccc6;
    background-image: linear-gradient(315deg, #4dccc6 0%, #96e4df 74%);
      line-height: 42px;
      padding: 0;
      border: none;
    }
    .btn-4:hover{
    
    
      background-color: #89d8d3;
    background-image: linear-gradient(315deg, #89d8d3 0%, #03c8a8 74%);
    }
    .btn-4 span {
    
    
      position: relative;
      display: block;
      width: 100%;
      height: 100%;
    }
    .btn-4:before,
    .btn-4:after {
    
    
      position: absolute;
      content: "";
      right: 0;
      top: 0;
      box-shadow:  4px 4px 6px 0 rgba(255,255,255,.9),
                  -4px -4px 6px 0 rgba(116, 125, 136, .2), 
        inset -4px -4px 6px 0 rgba(255,255,255,.9),
        inset 4px 4px 6px 0 rgba(116, 125, 136, .3);
      transition: all 0.3s ease;
    }
    .btn-4:before {
    
    
      height: 0%;
      width: .1px;
    }
    .btn-4:after {
    
    
      width: 0%;
      height: .1px;
    }
    .btn-4:hover:before {
    
    
      height: 100%;
    }
    .btn-4:hover:after {
    
    
      width: 100%;
    }
    .btn-4 span:before,
    .btn-4 span:after {
    
    
      position: absolute;
      content: "";
      left: 0;
      bottom: 0;
      box-shadow:  4px 4px 6px 0 rgba(255,255,255,.9),
                  -4px -4px 6px 0 rgba(116, 125, 136, .2), 
        inset -4px -4px 6px 0 rgba(255,255,255,.9),
        inset 4px 4px 6px 0 rgba(116, 125, 136, .3);
      transition: all 0.3s ease;
    }
    .btn-4 span:before {
    
    
      width: .1px;
      height: 0%;
    }
    .btn-4 span:after {
    
    
      width: 0%;
      height: .1px;
    }
    .btn-4 span:hover:before {
    
    
      height: 100%;
    }
    .btn-4 span:hover:after {
    
    
      width: 100%;
    }

    /* 5 */
    .btn-5 {
    
    
      width: 130px;
      height: 40px;
      line-height: 42px;
      padding: 0;
      border: none;
      background: rgb(255,27,0);
    background: linear-gradient(0deg, rgba(255,27,0,1) 0%, rgba(251,75,2,1) 100%);
    }
    .btn-5:hover {
    
    
      color: #f0094a;
      background: transparent;
      box-shadow:none;
    }
    .btn-5:before,
    .btn-5:after{
    
    
      content:'';
      position:absolute;
      top:0;
      right:0;
      height:2px;
      width:0;
      background: #f0094a;
      box-shadow:
      -1px -1px 5px 0px #fff,
      7px 7px 20px 0px #0003,
      4px 4px 5px 0px #0002;
      transition:400ms ease all;
    }
    .btn-5:after{
    
    
      right:inherit;
      top:inherit;
      left:0;
      bottom:0;
    }
    .btn-5:hover:before,
    .btn-5:hover:after{
    
    
      width:100%;
      transition:800ms ease all;
    }


    /* 6 */
    .btn-6 {
    
    
      background: rgb(247,150,192);
    background: radial-gradient(circle, rgba(247,150,192,1) 0%, rgba(118,174,241,1) 100%);
      line-height: 42px;
      padding: 0;
      border: none;
    }
    .btn-6 span {
    
    
      position: relative;
      display: block;
      width: 100%;
      height: 100%;
    }
    .btn-6:before,
    .btn-6:after {
    
    
      position: absolute;
      content: "";
      height: 0%;
      width: 1px;
    box-shadow:
      -1px -1px 20px 0px rgba(255,255,255,1),
      -4px -4px 5px 0px rgba(255,255,255,1),
      7px 7px 20px 0px rgba(0,0,0,.4),
      4px 4px 5px 0px rgba(0,0,0,.3);
    }
    .btn-6:before {
    
    
      right: 0;
      top: 0;
      transition: all 500ms ease;
    }
    .btn-6:after {
    
    
      left: 0;
      bottom: 0;
      transition: all 500ms ease;
    }
    .btn-6:hover{
    
    
      background: transparent;
      color: #76aef1;
      box-shadow: none;
    }
    .btn-6:hover:before {
    
    
      transition: all 500ms ease;
      height: 100%;
    }
    .btn-6:hover:after {
    
    
      transition: all 500ms ease;
      height: 100%;
    }
    .btn-6 span:before,
    .btn-6 span:after {
    
    
      position: absolute;
      content: "";
      box-shadow:
      -1px -1px 20px 0px rgba(255,255,255,1),
      -4px -4px 5px 0px rgba(255,255,255,1),
      7px 7px 20px 0px rgba(0,0,0,.4),
      4px 4px 5px 0px rgba(0,0,0,.3);
    }
    .btn-6 span:before {
    
    
      left: 0;
      top: 0;
      width: 0%;
      height: .5px;
      transition: all 500ms ease;
    }
    .btn-6 span:after {
    
    
      right: 0;
      bottom: 0;
      width: 0%;
      height: .5px;
      transition: all 500ms ease;
    }
    .btn-6 span:hover:before {
    
    
      width: 100%;
    }
    .btn-6 span:hover:after {
    
    
      width: 100%;
    }

    /* 7 */
    .btn-7 {
    
    
    background: linear-gradient(0deg, rgba(255,151,0,1) 0%, rgba(251,75,2,1) 100%);
      line-height: 42px;
      padding: 0;
      border: none;
    }
    .btn-7 span {
    
    
      position: relative;
      display: block;
      width: 100%;
      height: 100%;
    }
    .btn-7:before,
    .btn-7:after {
    
    
      position: absolute;
      content: "";
      right: 0;
      bottom: 0;
      background: rgba(251,75,2,1);
      box-shadow:
      -7px -7px 20px 0px rgba(255,255,255,.9),
      -4px -4px 5px 0px rgba(255,255,255,.9),
      7px 7px 20px 0px rgba(0,0,0,.2),
      4px 4px 5px 0px rgba(0,0,0,.3);
      transition: all 0.3s ease;
    }
    .btn-7:before{
    
    
      height: 0%;
      width: 2px;
    }
    .btn-7:after {
    
    
      width: 0%;
      height: 2px;
    }
    .btn-7:hover{
    
    
      color: rgba(251,75,2,1);
      background: transparent;
    }
    .btn-7:hover:before {
    
    
      height: 100%;
    }
    .btn-7:hover:after {
    
    
      width: 100%;
    }
    .btn-7 span:before,
    .btn-7 span:after {
    
    
      position: absolute;
      content: "";
      left: 0;
      top: 0;
      background: rgba(251,75,2,1);
      box-shadow:
      -7px -7px 20px 0px rgba(255,255,255,.9),
      -4px -4px 5px 0px rgba(255,255,255,.9),
      7px 7px 20px 0px rgba(0,0,0,.2),
      4px 4px 5px 0px rgba(0,0,0,.3);
      transition: all 0.3s ease;
    }
    .btn-7 span:before {
    
    
      width: 2px;
      height: 0%;
    }
    .btn-7 span:after {
    
    
      height: 2px;
      width: 0%;
    }
    .btn-7 span:hover:before {
    
    
      height: 100%;
    }
    .btn-7 span:hover:after {
    
    
      width: 100%;
    }

    /* 8 */
    .btn-8 {
    
    
      background-color: #f0ecfc;
    background-image: linear-gradient(315deg, #f0ecfc 0%, #c797eb 74%);
      line-height: 42px;
      padding: 0;
      border: none;
    }
    .btn-8 span {
    
    
      position: relative;
      display: block;
      width: 100%;
      height: 100%;
    }
    .btn-8:before,
    .btn-8:after {
    
    
      position: absolute;
      content: "";
      right: 0;
      bottom: 0;
      background: #c797eb;
      /*box-shadow:  4px 4px 6px 0 rgba(255,255,255,.5),
                  -4px -4px 6px 0 rgba(116, 125, 136, .2), 
        inset -4px -4px 6px 0 rgba(255,255,255,.5),
        inset 4px 4px 6px 0 rgba(116, 125, 136, .3);*/
      transition: all 0.3s ease;
    }
    .btn-8:before{
    
    
      height: 0%;
      width: 2px;
    }
    .btn-8:after {
    
    
      width: 0%;
      height: 2px;
    }
    .btn-8:hover:before {
    
    
      height: 100%;
    }
    .btn-8:hover:after {
    
    
      width: 100%;
    }
    .btn-8:hover{
    
    
      background: transparent;
    }
    .btn-8 span:hover{
    
    
      color: #c797eb;
    }
    .btn-8 span:before,
    .btn-8 span:after {
    
    
      position: absolute;
      content: "";
      left: 0;
      top: 0;
      background: #c797eb;
      /*box-shadow:  4px 4px 6px 0 rgba(255,255,255,.5),
                  -4px -4px 6px 0 rgba(116, 125, 136, .2), 
        inset -4px -4px 6px 0 rgba(255,255,255,.5),
        inset 4px 4px 6px 0 rgba(116, 125, 136, .3);*/
      transition: all 0.3s ease;
    }
    .btn-8 span:before {
    
    
      width: 2px;
      height: 0%;
    }
    .btn-8 span:after {
    
    
      height: 2px;
      width: 0%;
    }
    .btn-8 span:hover:before {
    
    
      height: 100%;
    }
    .btn-8 span:hover:after {
    
    
      width: 100%;
    }
      

    /* 9 */
    .btn-9 {
    
    
      border: none;
      transition: all 0.3s ease;
      overflow: hidden;
    }
    .btn-9:after {
    
    
      position: absolute;
      content: " ";
      z-index: -1;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background-color: #1fd1f9;
    background-image: linear-gradient(315deg, #1fd1f9 0%, #b621fe 74%);
      transition: all 0.3s ease;
    }
    .btn-9:hover {
    
    
      background: transparent;
      box-shadow:  4px 4px 6px 0 rgba(255,255,255,.5),
                  -4px -4px 6px 0 rgba(116, 125, 136, .2), 
        inset -4px -4px 6px 0 rgba(255,255,255,.5),
        inset 4px 4px 6px 0 rgba(116, 125, 136, .3);
      color: #fff;
    }
    .btn-9:hover:after {
    
    
      -webkit-transform: scale(2) rotate(180deg);
      transform: scale(2) rotate(180deg);
      box-shadow:  4px 4px 6px 0 rgba(255,255,255,.5),
                  -4px -4px 6px 0 rgba(116, 125, 136, .2), 
        inset -4px -4px 6px 0 rgba(255,255,255,.5),
        inset 4px 4px 6px 0 rgba(116, 125, 136, .3);
    }

    /* 10 */
    .btn-10 {
    
    
      background: rgb(22,9,240);
    background: linear-gradient(0deg, rgba(22,9,240,1) 0%, rgba(49,110,244,1) 100%);
      color: #fff;
      border: none;
      transition: all 0.3s ease;
      overflow: hidden;
    }
    .btn-10:after {
    
    
      position: absolute;
      content: " ";
      top: 0;
      left: 0;
      z-index: -1;
      width: 100%;
      height: 100%;
      transition: all 0.3s ease;
      -webkit-transform: scale(.1);
      transform: scale(.1);
    }
    .btn-10:hover {
    
    
      color: #fff;
      border: none;
      background: transparent;
    }
    .btn-10:hover:after {
    
    
      background: rgb(0,3,255);
    background: linear-gradient(0deg, rgba(2,126,251,1) 0%,  rgba(0,3,255,1)100%);
      -webkit-transform: scale(1);
      transform: scale(1);
    }

    /* 11 */
    .btn-11 {
    
    
      border: none;
      background: rgb(251,33,117);
        background: linear-gradient(0deg, rgba(251,33,117,1) 0%, rgba(234,76,137,1) 100%);
        color: #fff;
        overflow: hidden;
    }
    .btn-11:hover {
    
    
        text-decoration: none;
        color: #fff;
    }
    .btn-11:before {
    
    
        position: absolute;
        content: '';
        display: inline-block;
        top: -180px;
        left: 0;
        width: 30px;
        height: 100%;
        background-color: #fff;
        animation: shiny-btn1 3s ease-in-out infinite;
    }
    .btn-11:hover{
    
    
      opacity: .7;
    }
    .btn-11:active{
    
    
      box-shadow:  4px 4px 6px 0 rgba(255,255,255,.3),
                  -4px -4px 6px 0 rgba(116, 125, 136, .2), 
        inset -4px -4px 6px 0 rgba(255,255,255,.2),
        inset 4px 4px 6px 0 rgba(0, 0, 0, .2);
    }


    @-webkit-keyframes shiny-btn1 {
    
    
        0% {
    
     -webkit-transform: scale(0) rotate(45deg); opacity: 0; }
        80% {
    
     -webkit-transform: scale(0) rotate(45deg); opacity: 0.5; }
        81% {
    
     -webkit-transform: scale(4) rotate(45deg); opacity: 1; }
        100% {
    
     -webkit-transform: scale(50) rotate(45deg); opacity: 0; }
    }


    /* 12 */
    .btn-12{
    
    
      position: relative;
      right: 20px;
      bottom: 20px;
      border:none;
      box-shadow: none;
      width: 130px;
      height: 40px;
      line-height: 42px;
      -webkit-perspective: 230px;
      perspective: 230px;
    }
    .btn-12 span {
    
    
      background: rgb(0,172,238);
    background: linear-gradient(0deg, rgba(0,172,238,1) 0%, rgba(2,126,251,1) 100%);
      display: block;
      position: absolute;
      width: 130px;
      height: 40px;
      box-shadow:inset 2px 2px 2px 0px rgba(255,255,255,.5),
      7px 7px 20px 0px rgba(0,0,0,.1),
      4px 4px 5px 0px rgba(0,0,0,.1);
      border-radius: 5px;
      margin:0;
      text-align: center;
      -webkit-box-sizing: border-box;
      -moz-box-sizing: border-box;
      box-sizing: border-box;
      -webkit-transition: all .3s;
      transition: all .3s;
    }
    .btn-12 span:nth-child(1) {
    
    
      box-shadow:
      -7px -7px 20px 0px #fff9,
      -4px -4px 5px 0px #fff9,
      7px 7px 20px 0px #0002,
      4px 4px 5px 0px #0001;
      -webkit-transform: rotateX(90deg);
      -moz-transform: rotateX(90deg);
      transform: rotateX(90deg);
      -webkit-transform-origin: 50% 50% -20px;
      -moz-transform-origin: 50% 50% -20px;
      transform-origin: 50% 50% -20px;
    }
    .btn-12 span:nth-child(2) {
    
    
      -webkit-transform: rotateX(0deg);
      -moz-transform: rotateX(0deg);
      transform: rotateX(0deg);
      -webkit-transform-origin: 50% 50% -20px;
      -moz-transform-origin: 50% 50% -20px;
      transform-origin: 50% 50% -20px;
    }
    .btn-12:hover span:nth-child(1) {
    
    
      box-shadow:inset 2px 2px 2px 0px rgba(255,255,255,.5),
      7px 7px 20px 0px rgba(0,0,0,.1),
      4px 4px 5px 0px rgba(0,0,0,.1);
      -webkit-transform: rotateX(0deg);
      -moz-transform: rotateX(0deg);
      transform: rotateX(0deg);
    }
    .btn-12:hover span:nth-child(2) {
    
    
      box-shadow:inset 2px 2px 2px 0px rgba(255,255,255,.5),
      7px 7px 20px 0px rgba(0,0,0,.1),
      4px 4px 5px 0px rgba(0,0,0,.1);
    color: transparent;
      -webkit-transform: rotateX(-90deg);
      -moz-transform: rotateX(-90deg);
      transform: rotateX(-90deg);
    }


    /* 13 */
    .btn-13 {
    
    
      background-color: #89d8d3;
    background-image: linear-gradient(315deg, #89d8d3 0%, #03c8a8 74%);
      border: none;
      z-index: 1;
    }
    .btn-13:after {
    
    
      position: absolute;
      content: "";
      width: 100%;
      height: 0;
      bottom: 0;
      left: 0;
      z-index: -1;
      border-radius: 5px;
      background-color: #4dccc6;
    background-image: linear-gradient(315deg, #4dccc6 0%, #96e4df 74%);
      box-shadow:
      -7px -7px 20px 0px #fff9,
      -4px -4px 5px 0px #fff9,
      7px 7px 20px 0px #0002,
      4px 4px 5px 0px #0001;
      transition: all 0.3s ease;
    }
    .btn-13:hover {
    
    
      color: #fff;
    }
    .btn-13:hover:after {
    
    
      top: 0;
      height: 100%;
    }
    .btn-13:active {
    
    
      top: 2px;
    }


    /* 14 */
    .btn-14 {
    
    
      background: rgb(255,151,0);
      border: none;
      z-index: 1;
    }
    .btn-14:after {
    
    
      position: absolute;
      content: "";
      width: 100%;
      height: 0;
      top: 0;
      left: 0;
      z-index: -1;
      border-radius: 5px;
      background-color: #eaf818;
      background-image: linear-gradient(315deg, #eaf818 0%, #f6fc9c 74%);
      box-shadow:inset 2px 2px 2px 0px rgba(255,255,255,.5),
      7px 7px 20px 0px rgba(0,0,0,.1),
      4px 4px 5px 0px rgba(0,0,0,.1);
      transition: all 0.3s ease;
    }
    .btn-14:hover {
    
    
      color: #000;
    }
    .btn-14:hover:after {
    
    
      top: auto;
      bottom: 0;
      height: 100%;
    }
    .btn-14:active {
    
    
      top: 2px;
    }

    /* 15 */
    .btn-15 {
    
    
      background: #b621fe;
      border: none;
      z-index: 1;
    }
    .btn-15:after {
    
    
      position: absolute;
      content: "";
      width: 0;
      height: 100%;
      top: 0;
      right: 0;
      z-index: -1;
      background-color: #663dff;
      border-radius: 5px;
      box-shadow:inset 2px 2px 2px 0px rgba(255,255,255,.5),
      7px 7px 20px 0px rgba(0,0,0,.1),
      4px 4px 5px 0px rgba(0,0,0,.1);
      transition: all 0.3s ease;
    }
    .btn-15:hover {
    
    
      color: #fff;
    }
    .btn-15:hover:after {
    
    
      left: 0;
      width: 100%;
    }
    .btn-15:active {
    
    
      top: 2px;
    }


    /* 16 */
    .btn-16 {
    
    
      border: none;
      color: #000;
    }
    .btn-16:after {
    
    
      position: absolute;
      content: "";
      width: 0;
      height: 100%;
      top: 0;
      left: 0;
      direction: rtl;
      z-index: -1;
      box-shadow:
      -7px -7px 20px 0px #fff9,
      -4px -4px 5px 0px #fff9,
      7px 7px 20px 0px #0002,
      4px 4px 5px 0px #0001;
      transition: all 0.3s ease;
    }
    .btn-16:hover {
    
    
      color: #000;
    }
    .btn-16:hover:after {
    
    
      left: auto;
      right: 0;
      width: 100%;
    }
    .btn-16:active {
    
    
      top: 2px;
    }
  </style>
</body>
</html>

Rendering:

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Origin blog.csdn.net/Y1914960928/article/details/134527533