.canvas-container {
  text-align: center;
}

.sketch-canvas {
    border: 1px solid gray;
}

.sketch-canvas:hover {
  -webkit-box-shadow: 0px 0px 30px 5px rgba(0, 0, 0, 0.5);
  -moz-box-shadow: 0px 0px 30px 5px rgba(0, 0, 0, 0.5);
  box-shadow: 0px 0px 30px 5px rgba(0, 0, 0, 0.5);
}