font awesome 4 link code example
Example 1: link font awesome html
<link
rel="stylesheet"
href="https://use.fontawesome.com/releases/v5.13.0/css/all.css"
integrity="sha384-Bfad6CLCknfcloXFOyFnlgtENryhrpZCe29RTifKEixXQZ38WheV+i/6YWSzkz3V"
crossorigin="anonymous"
/>
Example 2: font awesome icons link
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css">
Example 3: link to font awesome
<link rel="stylesheet" href="path/to/font-awesome/css/font-awesome.min.css">
Example 4: fontawesome link
<link rel="stylesheet" href="https://use.fontawesome.com/releases/v5.6.3/css/all.css" integrity="sha384-UHRtZLI+pbxtHCWp1t77Bi1L4ZtiqrqD80Kn4Z8NTSRyMA2Fd33n5dQ8lWUE00s/" crossorigin="anonymous">
Example 5: font awsome link
<link href="//netdna.bootstrapcdn.com/twitter-bootstrap/2.3.2/css/bootstrap-combined.no-icons.min.css" rel="stylesheet">
<link href="//netdna.bootstrapcdn.com/font-awesome/3.2.1/css/font-awesome.css" rel="stylesheet">
Example 6: fontawesome link
<link rel="styleshet" href="path/to/font-awesome/css/font-awesome.min.css">