#defaultBg {
    position: absolute;
    top: 0px;
    left: 0px;
    z-index: -1;
    width: 1505px;
    height: 730px;
    display: flex;
    flex-direction: column;
    justify-content: space-evenly;
    background: linear-gradient(45deg, #f4eeff, #dcd6f7, #a6b1e1, #535094);
    background-size: 400% 400%;
    animation: gradient 15s ease infinite;
  }
  
  @keyframes gradient {
    0% {
      background-position: 0% 50%;
    }
    50% {
      background-position: 100% 50%;
    }
    100% {
      background-position: 0% 50%;
    }
  }