Add icon after link with CSS, exemple with Font Awesome

Here's how to add an icon to all the links on your site without having to go back over all your implementations.
For this example we used Font Awesome to get the icon but you can add any SVG, whether it's a library like here or a simple SVG.
It is possible to refine the links you are targeting, for example by targeting only links with a target="_blank" attribute.
a:after {
    content: ' \f08e';
    font-family: 'FontAwesome';