use font awesome free cdn link code example

Example 1: font awesome icons cdn

To load all styles:

<link rel="stylesheet" href="https://pro.fontawesome.com/releases/v5.10.0/css/all.css" integrity="sha384-AYmEC3Yw5cVb3ZcuHtOA93w35dYTsvhLPVnYs9eStHfGJvOvKxVfELGroGkvsg+p" crossorigin="anonymous"/>

Example 2: font awesome cdn latest

//Latest version
<script src="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.14.0/js/all.min.js" integrity="sha512-YSdqvJoZr83hj76AIVdOcvLWYMWzy6sJyIMic2aQz5kh2bPTd9dzY3NtdeEAzPp/PhgZqr4aJObB3ym/vsItMg==" crossorigin="anonymous"></script>

Example 3: font awesome cdn

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