font awesome fab code example

Example 1: font awesome

<link rel="stylesheet" href="https://use.fontawesome.com/releases/v5.15.1/css/all.css" integrity="sha384-vp86vTRFVJgpjF9jiIGPEEqYqlDwgyBgEF109VFjmqGmIY/Y4HV4d3Gp2irVfcrp" crossorigin="anonymous">

Example 2: Font Awesome

Font Awesome is a font and icon toolkit based on CSS and Less.

It was made by Dave Gandy for use with Bootstrap, and later was incorporated
into the BootstrapCDN.

Font Awesome has a 38% market share among those websites that use third-party
font scripts on their platform, ranking it second place after Google Fonts.

Example 3: font awesome fa

Posting random icons in grepper doesn't make sense guys, you need the 
visuals on the page