#main-window {
  width: 500px;
  position: relative;
  left: 50%;
  transform: translateX(-50%);
}

body {
  background: url(index/nightsky.gif);
  /*image-rendering: pixelated;*/
}

.menu-icon {
  height: 1em;
  aspect-ratio: 1/1;
  vertical-align: -10%;
}

s {
  opacity: 0.6;
}

a {
  text-decoration: underline dotted !important;
}