body {
      margin: 0;
      cursor: none; /* normalen Cursor ausblenden */
      height: 100vh;
      overflow: hidden;
    }

    #crosshair {
      position: absolute;
      pointer-events: none;
      z-index: 9999;
    }

    .line {
      position: absolute;
      background-color: black;
    }

    .horizontal {
      left: -100vw;
      width: 200vw;
      height: 1px;
      top: 0;
    }

    .vertical {
      top: -100vh;
      height: 200vh;
      width: 1px;
      left: 0;
    }