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js添加第一次进入网站动画

2022年07月15日45wayfarer
document.body.removeChild(document.getElementById('loader-wrapper'))
  .chromeframe { 
      margin: 0.2em 0; 
      background: #ccc; 
      color: #000; 
      padding: 0.2em 0; 
    } 
 
    #loader-wrapper { 
      position: fixed; 
      top: 0; 
      left: 0; 
      width: 100%; 
      height: 100%; 
      z-index: 999999; 
    } 
 
    #loader { 
      display: block; 
      position: relative; 
      left: 50%; 
      top: 50%; 
      width: 150px; 
      height: 150px; 
      margin: -75px 0 0 -75px; 
      border-radius: 50%; 
      border: 3px solid transparent; 
      /* COLOR 1 */ 
      border-top-color: #FFF; 
      -webkit-animation: spin 2s linear infinite; 
      /* Chrome, Opera 15+, Safari 5+ */ 
      -ms-animation: spin 2s linear infinite; 
      /* Chrome, Opera 15+, Safari 5+ */ 
      -moz-animation: spin 2s linear infinite; 
      /* Chrome, Opera 15+, Safari 5+ */ 
      -o-animation: spin 2s linear infinite; 
      /* Chrome, Opera 15+, Safari 5+ */ 
      animation: spin 2s linear infinite; 
      /* Chrome, Firefox 16+, IE 10+, Opera */ 
      z-index: 1001; 
    } 
 
    #loader:before { 
      content: ""; 
      position: absolute; 
      top: 5px; 
      left: 5px; 
      right: 5px; 
      bottom: 5px; 
      border-radius: 50%; 
      border: 3px solid transparent; 
      /* COLOR 2 */ 
      border-top-color: #FFF; 
      -webkit-animation: spin 3s linear infinite; 
      /* Chrome, Opera 15+, Safari 5+ */ 
      -moz-animation: spin 3s linear infinite; 
      /* Chrome, Opera 15+, Safari 5+ */ 
      -o-animation: spin 3s linear infinite; 
      /* Chrome, Opera 15+, Safari 5+ */ 
      -ms-animation: spin 3s linear infinite; 
      /* Chrome, Opera 15+, Safari 5+ */ 
      animation: spin 3s linear infinite; 
      /* Chrome, Firefox 16+, IE 10+, Opera */ 
    } 
 
    #loader:after { 
      content: ""; 
      position: absolute; 
      top: 15px; 
      left: 15px; 
      right: 15px; 
      bottom: 15px; 
      border-radius: 50%; 
      border: 3px solid transparent; 
      border-top-color: #FFF; 
      /* COLOR 3 */ 
      -moz-animation: spin 1.5s linear infinite; 
      /* Chrome, Opera 15+, Safari 5+ */ 
      -o-animation: spin 1.5s linear infinite; 
      /* Chrome, Opera 15+, Safari 5+ */ 
      -ms-animation: spin 1.5s linear infinite; 
      /* Chrome, Opera 15+, Safari 5+ */ 
      -webkit-animation: spin 1.5s linear infinite; 
      /* Chrome, Opera 15+, Safari 5+ */ 
      animation: spin 1.5s linear infinite; 
      /* Chrome, Firefox 16+, IE 10+, Opera */ 
    } 
 
 
    @-webkit-keyframes spin { 
      0% { 
        -webkit-transform: rotate(0deg); 
        /* Chrome, Opera 15+, Safari 3.1+ */ 
        -ms-transform: rotate(0deg); 
        /* IE 9 */ 
        transform: rotate(0deg); 
        /* Firefox 16+, IE 10+, Opera */ 
      } 
      100% { 
        -webkit-transform: rotate(360deg); 
        /* Chrome, Opera 15+, Safari 3.1+ */ 
        -ms-transform: rotate(360deg); 
        /* IE 9 */ 
        transform: rotate(360deg); 
        /* Firefox 16+, IE 10+, Opera */ 
      } 
    } 
 
    @keyframes spin { 
      0% { 
        -webkit-transform: rotate(0deg); 
        /* Chrome, Opera 15+, Safari 3.1+ */ 
        -ms-transform: rotate(0deg); 
        /* IE 9 */ 
        transform: rotate(0deg); 
        /* Firefox 16+, IE 10+, Opera */ 
      } 
      100% { 
        -webkit-transform: rotate(360deg); 
        /* Chrome, Opera 15+, Safari 3.1+ */ 
        -ms-transform: rotate(360deg); 
        /* IE 9 */ 
        transform: rotate(360deg); 
        /* Firefox 16+, IE 10+, Opera */ 
      } 
    } 
 
 
    #loader-wrapper .loader-section { 
      position: fixed; 
      top: 0; 
      width: 51%; 
      height: 100%; 
      background: #7171C6; 
      /* Old browsers */ 
      z-index: 1000; 
      -webkit-transform: translateX(0); 
      /* Chrome, Opera 15+, Safari 3.1+ */ 
      -ms-transform: translateX(0); 
      /* IE 9 */ 
      transform: translateX(0); 
      /* Firefox 16+, IE 10+, Opera */ 
    } 
 
    #loader-wrapper .loader-section.section-left { 
      left: 0; 
    } 
 
    #loader-wrapper .loader-section.section-right { 
      right: 0; 
    } 
 
    /* Loaded */ 
 
    .loaded #loader-wrapper .loader-section.section-left { 
      -webkit-transform: translateX(-100%); 
      /* Chrome, Opera 15+, Safari 3.1+ */ 
      -ms-transform: translateX(-100%); 
      /* IE 9 */ 
      transform: translateX(-100%); 
      /* Firefox 16+, IE 10+, Opera */ 
      -webkit-transition: all 0.7s 0.3s cubic-bezier(0.645, 0.045, 0.355, 1.000); 
      transition: all 0.7s 0.3s cubic-bezier(0.645, 0.045, 0.355, 1.000); 
    } 
 
    .loaded #loader-wrapper .loader-section.section-right { 
      -webkit-transform: translateX(100%); 
      /* Chrome, Opera 15+, Safari 3.1+ */ 
      -ms-transform: translateX(100%); 
      /* IE 9 */ 
      transform: translateX(100%); 
      /* Firefox 16+, IE 10+, Opera */ 
      -webkit-transition: all 0.7s 0.3s cubic-bezier(0.645, 0.045, 0.355, 1.000); 
      transition: all 0.7s 0.3s cubic-bezier(0.645, 0.045, 0.355, 1.000); 
    } 
 
    .loaded #loader { 
      opacity: 0; 
      -webkit-transition: all 0.3s ease-out; 
      transition: all 0.3s ease-out; 
    } 
 
    .loaded #loader-wrapper { 
      visibility: hidden; 
      -webkit-transform: translateY(-100%); 
      /* Chrome, Opera 15+, Safari 3.1+ */ 
      -ms-transform: translateY(-100%); 
      /* IE 9 */ 
      transform: translateY(-100%); 
      /* Firefox 16+, IE 10+, Opera */ 
      -webkit-transition: all 0.3s 1s ease-out; 
      transition: all 0.3s 1s ease-out; 
    } 
 
    /* JavaScript Turned Off */ 
 
    .no-js #loader-wrapper { 
      display: none; 
    } 
 
    .no-js h1 { 
      color: #222222; 
    } 
 
    #loader-wrapper .load_title { 
      font-family: 'Open Sans'; 
      color: #FFF; 
      font-size: 19px; 
      width: 100%; 
      text-align: center; 
      z-index: 9999999999999; 
      position: absolute; 
      top: 60%; 
      opacity: 1; 
      line-height: 30px; 
    } 
 
    #loader-wrapper .load_title span { 
      font-weight: normal; 
      font-style: italic; 
      font-size: 13px; 
      color: #FFF; 
      opacity: 0.5; 
    }
<div id="loader-wrapper"> 
    <div id="loader"><img src="/src/assets/image/logo.png" alt=""></div> 
    <div class="loader-section section-left"></div> 
    <div class="loader-section section-right"></div> 
    <div class="load_title">正在加载 admin,请耐心等待 
    </div> 
  </div> 

  


本文参考链接:https://www.cnblogs.com/wulicute-TS/p/14852720.html