According to Twitter Bootstrap docs (http://twitter.github.com/bootstrap/base-css.html?#icons), you can add icons to a page using the following code (example):



I'm adding this to the code of one of the single pages of an add-on within the dashboard, but it doesn't seem to work. Other Bootstrap code works (like adding class "btn" to <button>). I know the version of Bootstrap used with C5 is modified...is there a special trick to making this work?