Getting Started with Font Awesome Icons
You can use font awesome icons by adding the font awesome css link in your html, font awesom icons is a font based on css developed by Dave Gandy for Twitter Bootstrap.
Font awesome icons cover big share in market and it’s totally free comes in Creative Commons Attribution 4.0, and MIT License.
This link is directly load the fonts icons from official website. You can also download font awesome icons zip from official website With zip files you can unzip files and place it on project folder
Just like above link you just need to change the path as per your project folder like this
your HTML code look like this
After Installation of fonts files you can use icons directly in your html like this
In Old Version
In fontawesome you will lot of options to apply icons like you can animate,resize icons with use of additional class for more information check it out.