Glyphicons
Bootstrap provides 260 glyphicons from the Glyphicons Halflings set.

Glyphicons can be used in a text, buttons, toolbars, navigation, forms, etc.

Following are some examples of glyphicons:

1. Envelope glyphicon
2. Print glyphicon
3. Search glyphicon
4. Download glyphicon

Glyphicon Syntax is as follows and the glyphicon is inserted with the following syntax:

<span class="glyphicon glyphicon-name"></span>

The name part in the syntax above must be replaced with the proper name of the glyphicon.