body {
  border: 0;
  margin: 0;
}

.flex-container {
  display: -webkit-flex;
  display: flex;
}

canvas.halfwindow {
  width: 50vw;
  height: 50vh;
}

canvas.fullwindow {
  width: 100vw;
  height: 100vh;
}

canvas.bordered {
  border: 2px solid #0300ff;
  border-radius: 10px;
}

.indent {
  margin: 0;
  padding-left: 10px;
}