Font Awesome
Example of bar-chart at 6x   Example of bar-chart at 5x    Example of bar-chart at 4x    Example of bar-chart at 3x    Example of bar-chart at 2x   Example of bar-chart

fa-bar-chart · Unicode: f080 · Created: v1.0 · Categories: Web Application Icons, Chart Icons · Aliases: fa-bar-chart-o

After you get up and running, you can place Font Awesome icons just about anywhere with the <i> tag:

Example of bar-chart fa-bar-chart 
<i class="fa fa-bar-chart" aria-hidden="true"></i>

Note: to improve web accessibility, we recommend using aria-hidden="true" to hide icons used purely for decoration.

Looking for more? Check out the examples.