User blog comment:Kirkburn/Syntax highlighting - helping you read and write code/@comment-26009167-20150310170058/@comment-24757753-20150313141829

@MichiRecRoom - Mhmm, only for individual ones, like .example { color: #E0D1FF !important; font-weight: bold !important; }

It is used to force that styling to override over all others, but since your user/site styles are loaded after Wikia's default styles (which gives your styles a higher priority), it's usually not needed.