#wave {
    color: #191970;
    padding-top: calc((100% - 1127px) / 2);
    height: 14em;
    box-sizing: content-box;
    background: currentColor;
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
  }
  
  #wave svg {
    display: block;
    position: relative;
    top: calc(14em - 1px);
  }