Font Awesome CSS is an iconic font and CSS toolkit that provides scalable vector icons. It is pictographic, as it contains 519 icons that are controlled by CSS, as well as responsive. You can get more details on Font Awesome from http://fortawesome.github.io/Font-Awesome/.
We can set up Font Awesome easily by adding two lines to our website, or become a pro and customize it ourselves. Font Awesome supports Bootstrap 3 as well.
We get fewer JavaScript compatibility concerns with Font Awesome because it doesn't require any JavaScript. All the things are controlled by CSS, and are vectors, by which icons look awesome and gorgeous on high resolution or every device size.