Icons Awesome
Font icons
Font Awesome Icons 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.
Basic Icons
Use the .fas | .fab .fa- class
<i class="fab fa-youtube"></i>
Colored Icons
Use the .text-[brand|secondary|success|info|primary|warning|danger|muted|dark] and insert the themify icon code.
<i class="fab fa-twitter text-dark"></i>
Sizing Icons
Custom size for icon, user font-[xs | sm | md | lg | xl | xxl] class
<i class="fab fa-twitter font-xxxl"></i>