* * {
  box-sizing: border-box;
}

html {
  overflow: hidden;
    /*
    (Gets rid of flashing scrollbars which appeared during the "show
    info" animation.)
    */
}

body {
  margin: 0px;
  padding: 0px;
  background-color: black;
}

canvas {
  display: block;
    /* (Gets rid of scrollbars.) */
  pointer-events: none;
}