html {
        background-image: url("/dustII.png");
        background-size: cover;
        background-repeat: no-repeat;
      }
      body {
        font-family: 'Roboto', sans-serif;
        text-align: center;
        margin: 0;
        padding: 0;
      }
      p {
        border: 1px solid black;
        display: block;
        padding: 10px;
        background-color: rgba(255,160,0,0.6);
        color: rgb(0,0,0);
        margin: 10px 100px 10px 100px;
      }
      p:hover {
        animation: shadow 0.05s, transparent 0.05s;
        animation-fill-mode: forwards;
      }
      ul {
        list-style-type: none;
        margin: 0;
        padding: 0;
        overflow: hidden;
        position: fixed;
        background-color: rgba(255,170,0,0.6);
        top: 0;
        width:100%;
      }
      ul:hover {
        animation: shadow 0.05s, transparent 0.05s;
        animation-fill-mode: forwards;
      }
      li {
        float: left;
      }
      li a {
        display: block;
        font-size: 20px;
        text-decoration: none;
        text-align: center;
        color: #111;
        padding: 10px 16px;
      }
      li a:hover {
        background-color: white;
        animation: shadow 0.05s;
        animation-fill-mode: forwards;
      }
      .active {
        background-color: white;
        box-shadow: 5px 5px 5px rgba(0,0,0,0.2);
      }
      .top {
        padding-top: 58px;
      }
      iframe {
        border: none;
        padding-top: 58px;
        width: 70%;
        overflow: hidden;
      }
      @keyframes shadow {
      from {box-shadow: 0px 0px 5px rgba(0,0,0,0.2);}
      to {box-shadow: 5px 5px 5px rgba(0,0,0,0.2);}
      }
      @keyframes transparent {
      from {background-color: rgba(255,170,0,0.6);}
      to {background-color: rgb(255,170,0);}
      }