html,
body {
  background-color: #000000;
  margin: 0;
  height: 100%;
}
a:link {
  color: #cccccc;
}
a:visited {
  color: #cccccc;
}
ul {
  list-style-type: none;
}
#help table {
  width: 100%;
}
#help table,
#help td {
  border: 1px solid #888888;
  border-collapse: collapse;
  padding: 0.5em;
  margin: auto;
}
#attractor {
  display: block;
  height: 100%;
  aspect-ratio: 1;
  margin: auto;
}
.number_in {
  width: 70px;
}
#info,
#what,
#input,
#graph {
  display: block;
  font-family: monospace;
  font-size: 18px;
  color: #cccccc;
  position: absolute;
  margin: 1em;
  padding: 0.5em;
  background-color: rgba(0, 0, 0, 0.8);
}
#help {
  display: block;
  font-family: monospace;
  font-size: 18px;
  color: #cccccc;
  padding: 0.5em;
  background-color: rgba(0, 0, 0, 0.8);
  width: 1000px;
  margin: auto;
  line-height: 1.4;
}
#input {
  top: 0;
  left: 0;
}
#what {
  top: 0;
  right: 0;
}
#info {
  bottom: 0;
  right: 0;
}
#graph {
  bottom: 0;
  left: 0;
}