Courier New for code,pre looks awful in Ubuntu Linux 15.10

Created by: gjcarneiro

Please don't put "Courier New" ahead of monospace:

code,
pre {
  font-family: Monaco, Menlo, Consolas, "Courier New", monospace;
}

This causes Courier New to be used in Linux and it looks really awful. I don't understand the need for overriding the default monospace font. The default monospace font is usually the most readable on any system, trying to override is a very bad idea.