html {
      box-sizing: border-box;
      background: blue;
      font-family: 'helvetica neue';
      font-size: 20px;
      font-weight: 200;
    }
    
    body {
      margin: 0;
    }
    
    *, *:before, *:after {
      box-sizing: inherit;
    }

    .panels {
      min-height: 100vh;
      overflow: hidden;
      display: flex;
    }

    .panel {
      background: #6B0F9C;
      box-shadow: inset 0 0 0 5px rgba(255,255,255,0.1);
      color: white;
      text-align: center;
      align-items: center;
      transition:
        font-size 0.7s cubic-bezier(0.61,-0.19, 0.7,-0.11),
        flex 0.7s cubic-bezier(0.61,-0.19, 0.7,-0.11),
        background 0.2s;
      font-size: 20px;
      background-size: cover;
      background-position: center;
      flex: 1;
      justify-content: center;
      align-items: center;
      display: flex;
      flex-direction: column;
    }

    .panel1 { background-image:url(./img/gin_ichimaru___bleach__cacao_society__by_dingier_dd37wac-fullview.jpg); }
    .panel2 { background-image:url(./img/rukia_kuchiki___bleach__new_year__by_dingier_dbys616-fullview\ \(2\).png); }
    .panel3 { background-image:url(./img/ichigo_kurosaki___bleach_by_dingier_dc7h4t1-fullview.png); }
    .panel4 { background-image:url(./img/kenpachi_zaraki___bleach_by_dingier_dbslc7p-fullview\ \(2\).png); }
    .panel5 { background-image:url(./img/index5.png); }

    /* Flex Children */
    .panel > * {
      margin: 0;
      width: 100%;
      transition: transform 0.5s;
      flex: 1 0 auto;
      display: flex;
      justify-content: center;
      align-items: center;
    }

    .panel > *:first-child{
        transform: translateY(-100%);
    }

    .panel.open-active> *:first-child{
        transform: translateY(0);
    }

    .panel > *:last-child{
        transform: translateY(100%);
    }

    .panel.open-active> *:last-child{
        transform: translateY(0);
    }

    .panel p {
      text-transform: uppercase;
      font-family: 'Amatic SC', cursive;
      text-shadow: 0 0 4px rgba(0, 0, 0, 0.72), 0 0 14px rgba(0, 0, 0, 0.45);
      font-size: 2em;
    }
    
    .panel p:nth-child(2) {
      font-size: 4em;
    }

    .panel.open {
      flex: 5;
      font-size: 40px;
    }