body {
        background-color: black;
        overflow: hidden;
        background-image: url(https://skapasta.neocities.org/assets/img/other/movie/theaterbg.png);
        background-repeat: no-repeat;
        background-size: cover;
    }
          .layout {
        width: 100%;

        display: grid;
        grid:
          ". . ." auto
          "leftSide body rightSide" 1fr
          ". . ." auto
          / auto 906px auto;
      }

      .leftSide { grid-area: leftSide; }
      
      .body { 
        grid-area: body;
        display: flex;
        flex-direction: column;
      align-content: center;
      }
      
      .rightSide { grid-area: rightSide; }