fontawesome 4.7.0 icons code example
Example 1: font awesome bootstrap cdn
<link rel="stylesheet" href="path/to/font-awesome/css/font-awesome.min.css">
Example 2: font awesome css
<span style="font-size: 3em; color: Tomato;">
<i class="fas fa-camera"></i>
</span>
<span style="font-size: 48px; color: Dodgerblue;">
<i class="fas fa-camera"></i>
</span>
<span style="font-size: 3rem;">
<span style="color: Mediumslateblue;">
<i class="fas fa-camera"></i>
</span>
</span>