html{
    scroll-behavior: smooth;
}

  #preloader{
    background:  url("https://i.pinimg.com/originals/2c/bb/5e/2cbb5e95b97aa2b496f6eaec84b9240d.gif") no-repeat center center;
    background-color: white;
    height: 100vh;
    width: 100%;
    position: fixed;
    z-index: 100;
  }