canvas {
      margin: 50px auto 0;
      top: 50%;
      left: 50%;
      transform: translate(-50%, -50%);
      display: block;
      position: fixed;
      width: 70vw;
      height: 70vh;
      pointer-events: none;
}
.spacer {
      height: calc(100vh + 60 * 20px);
}
.ladowanie{
      position: fixed;
      font-weight: bold;
      color: var(--brown-light);
      text-align: center;
      left: 50%;
      bottom: 50%;
      transform: translate(-50%, -50%);
}
header{
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
}
.container{
      margin-top: 50;
      position: fixed;
      text-align: center;
      top: 96px;
      left: 50%;
      transform: translateX(-50%);
      width: 100%;
}