body {
  margin: 0;
  padding: 0;

  background-color: white;
  font-family: sans-serif;

  /* leave it to hide the scrollbars */
  overflow: hidden;
}

dialog {
  border-radius: 1rem;
}

button {
  cursor: pointer;
  border-radius: 0.5rem;
  padding: 0.25rem 0.5rem;
  margin: 0.5rem 0.25rem;
}

canvas#my-canvas {
  max-width: 100%;
  max-height: 100%;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  object-fit: contain;
  cursor: pointer;
}

#lds .background {
  position: absolute;
  top: 0;
  left: 0;
  z-index: 1000;
  background-color: #000;
  width: 100vw;
  height: 100vh;
  opacity: 1;
  animation: lds 3s cubic-bezier(0, 0.2, 0.8, 1) infinite;
}
#lds .text {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  display: block;
  font-family: sans-serif;
  font-weight: bold;
  color: #fff;
  text-align: center;
  opacity: 1;
  z-index: 1001;
}
#lds.hide {
  display: none;
}
@keyframes lds {
  0% {
    opacity: 0.4;
  }
  33% {
    opacity: 0.7;
  }
  64% {
    opacity: 0.7;
  }
  100% {
    opacity: 0.4;
  }
}