font-awesome 4 old cdn code example

Example 1: font awesome cdn

/* @import CSS Query */
@import url "https://stackpath.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css";

Example 2: font awesome cdn

<script src="https://kit.fontawesome.com/97f4dbfedd.js" crossorigin="anonymous"></script>