#app {
      position: relative;
      width: 100%;
      height: 100%;
      min-height: 100%;
      background: #f3eee4;
      -webkit-transition: background-color 180ms linear;
      transition: background-color 180ms linear;
    }

    #app.overdue {
      background: #c77f6d;
    }

    .screen {
      position: absolute;
      top: 0;
      right: 0;
      bottom: 0;
      left: 0;
    }

    .is-hidden {
      display: none !important;
    }