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  <title>Flutter Gallery</title>
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  body {
    background-color: #030303;
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    <style>
      body {
        inset: 0; overflow: hidden;
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        position: fixed;
      }
      #loading {
        align-items: center;
        display: flex;
        height: 100%;
        justify-content: center;
        width: 100%;
      }
      #loading img {
        animation: 1s ease-in-out 0s infinite alternate breathe;
        opacity: .66;
        transition: opacity .4s;
      }
      #loading.main_done img {
        opacity: 1;
      }
      #loading.init_done img {
        animation: .33s ease-in-out 0s 1 forwards zooooom;
        opacity: .05;
      }
      @keyframes breathe { from { transform: scale(1) } to { transform: scale(0.95)}}
      @keyframes zooooom { from { transform: scale(1) } to { transform: scale(10)}}
      </style>
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