CDN
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.1.2/css/all.min.css" integrity="sha512-1sCRPdkRXhBV2PBLUdRb4tMg1w2YPf37qatUFeS7zlBy7jJI8Lf4VHwWfZZfpXtYSLy85pkm9GaYVYMfw5BC1A==" crossorigin="anonymous" referrerpolicy="no-referrer" />
unicode
.awesome::before{
font-family: "Font Awesome 5 Free";
content: '\f017';
font-size: 15px;
font-weight: 400;
margin-right: 4px;
color:#f90;
}