.codedisplay {
  font-family:  Courier New, Courier, monospace;
  margin-left: 5%; 
  margin-right: 5%;
  padding: 10px;
  text-style: center;
  white-space: pre;
  color: black;
  background-color: rgb(210, 210, 210);
}

code {
  font-family:  Courier New, Courier, monospace;
  font-size: 120%
  white-space: nowrap; /* pre would be better, but it doesn't work with IE */
}

.second { color: #000; background: #fff; }
.first { color: #000; background: #edf3fe; }