html, body {
  padding: 0;
  margin: 0;
}
#main_svg {
  width: 100%;
  height: calc(100vh - 32px);
  object-fit: contain;
}
#control {
  display: none;
}
#play {
  width: 6em;
}
.label_slider {
  margin-top: 10px;
}
#position_display_precise {
  display: inline-block;
}
#speed_display {
  width: 4em;
  text-align: center;
}

#position_display_slider {
  width: 2em;
  text-align: center;
}