html { 
    scroll-behavior: smooth; 
    margin: 0;
    padding: 0;
    width: 100%;
    height: 100%;
}

body {  
    margin: 0;
    padding: 0;
    width: 100%;
    height: 100%;
}

canvas {
      position:absolute;
      left:0;
      top:0;
      z-index:-1;
      display: block;
      background-color: #000000;
}