h2 {
  padding: 0px;
  margin: 0px;
}

table, th, td, tr, div, form {
  padding: 0px;
  margin: 0px;
  border-width: 0px none;
  border-collapse: collapse;
  vertical-align: top;
}

.cache table th, .cache table td, #mem table th, #mem table td, .cpu table td {
  /* border-collapse: separate; */
  padding: 0px 2px 0px 2px;
}

.changed {
  background: #ffaaaa;
}

.read {
  background: #ffff00;
}

.read_and_changed {
  background: #ffcc55;
}

.wire {
  text-align: center;
}

#mem, #clock, .cpu, .cache, #bus {
  border: 1px solid #aaa;
  /* border: 0px none; */
  margin: 0px 4px 0px 4px;
  padding: 4px;
  /* background-color: #f0f0f0; */
}

#clock {
  float: left;
  border: 1px solid #aaa;
  /* border: 0px none; */
  margin: 0px 4px 8px 4px;
  padding: 4px;
  /* background-color: #f0f0f0; */
}