<!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" />
    <link rel="icon" href="<%= BASE_URL %>favicon.ico" />
    <link rel="stylesheet" type="text/css" href="./iconfont.css" />
    <script src="//at.alicdn.com/t/font_1104271_so151lbumpq.js"></script>
    <title>图书管理系统</title>
    <style>
      #loader {
        position: fixed;
        left: 0;
        right: 0;
        bottom: 0;
        top: 0;
        background:#fff;
        display: flex;
        justify-content: center;
        align-items: center;
        transition: display 1s ease .5s;
      }
      .loader-logo {
        width: 60px;
        height: 91px;
        position: fixed;
        left: 20%;
        top: 43%;
      }
      .spinner {
        position: relative;
        line-height: 0;
        box-sizing: border-box;
        width: 40px;
        height: 40px;
        color: #3963bc;
      }

      .spinner:before {
        content: '';
        width: 100%;
        height: 20%;
        min-width: 5px;
        background: #000;
        opacity: 0.1;
        position: absolute;
        bottom: 0%;
        left: 0;
        border-radius: 50%;
        animation: rotate-square-2-shadow .5s linear infinite;
      }
      .spinner:after {
        content: '';
        width: 100%;
        height: 100%;
        background: #3963bc;
        animation: rotate-square-2-animate .5s linear infinite;
        position: absolute;
        bottom:40%;
        left: 0;
        border-radius: 3px;
      }


    @keyframes rotate-square-2-animate {
      17% {
        border-bottom-right-radius: 3px;
      }
      25% {
        transform: translateY(20%) rotate(22.5deg);
      }
      50% {
        transform: translateY(40%) scale(1, .9) rotate(45deg);
        border-bottom-right-radius: 50%;
      }
      75% {
        transform: translateY(20%) rotate(67.5deg);
      }
      100% {
        transform: translateY(0) rotate(90deg);
      }
    }

    @keyframes rotate-square-2-shadow {
      0%, 100% {
        transform: scale(1, 1);
      }
      50% {
        transform: scale(1.2, 1);
      }
    }
    </style>
  </head>

  <body>

    <div id="loader">
        <div class="spinner spinner--rotate-square-2"></div>
    </div>
    <div id="app"></div>
    <!-- built files will be auto injected -->
  </body>
</html>