html,body {
    margin: 0;
    padding: 0;
  background: #EEECEC05;
}

main {

    width: 100%;
}

canvas {
  display: block;
}

main {
  align-items:center;
  display: flex;
  flex: 400px; 
  height: 100vh; 
  justify-content: center;

}

main canvas { 
  height: auto !important;
  width: auto !important;
  max-width: 100%;
  max-height: 100%;
  display: inline-block; 
  margin: 0 auto;
  vertical-align: middle;
  touch-action: none;
}