* {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
}
      body {
        margin: 0;
        background: #dedede;
        display: flex;
        align-items: center;
        height: 80vh;
      }

      .gameboard {
        height: 100vh;
        width: 100vh;
        border-radius: 50%;
        overflow: hidden;
        margin: 0 auto;
        max-height: 60vh;
        max-width: 60vh;
      }

      .color {
        width: 50%;
        height: 50%;
        display: inline-block;
      }

      .left {
        float: left;
      }

      .right {
        float: left;
      }

      .celeste {
        background: #22a6b3;
      }

      .celeste.light {
        background: #7ed6df;
      }

      .violeta {
        background: #be2edd;
      }

      .violeta.light {
        background: #e056fd;
      }

      .naranja {
        background: #f0932b;
      }

      .naranja.light {
        background: #ffbe76;
      }

      .verde {
        background: #6ab04c;
      }

      .verde.light {
        background: #badc58;
      }

      .btn-start {
      cursor: pointer;
      width: 420px;
      height: 100px;
      background: #ecf0f1;
      color: #2c3e50;
      border: none;
      border-bottom: 4px solid #c4c6c7;
      border-radius: 8px;
      font-size: 3em;
      position: absolute;
      top: calc(50% - 110px);
      left: calc(50% - 210px);
      transition: .5s;
      outline: none;
    }

    .btn-start:hover {
      color: #ecf0f1;
      background: #2c3e50;
      border-bottom: 4px solid #1f3346;
    }
    
    .btn-start:active {
      transform: scale(.95);
    }

      .hide {
        display: none;
      }