How to just display the Font Awesome icon, not the link text

Hi

Probably a stupid question but here goes.

I’ve just got Font Awsome to work on my site, and so on a field type Link with widget URL Field, I’ve given it the classes fa fa-globe (is that the right one for a URL www link?), and now the URL is displayed, prefixed by the FA globe icon.

So how can I now get rid of the URL text and leave just the globe, as next up are links for Twitter, Facebook and so on?

Cheers
J

PS. I’m not using the icon api as it white-screens my website

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