.bannersplit {
    height: 550px;
    width: 50%;
    position: fixed;
    z-index: 1;
    top: 0;
    overflow-x: hidden;
    padding-top: 20px;
  }
  
  .bannerleft {
    left: 0;   
    background-color: #3e5da4;
  }
  
  .bannerright {
    right: 0;
    background-color: #1C1A30;
  }
  
  .bannercentered {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
  }