Style for visited links

[mhm-amaya]

I suggest styling the :visited status to avoid bizarre colors in icons and text. For instance, lines 76-77 of jssocials-theme-flat.css would be:

.jssocials-share-link:hover, .jssocials-share-link:focus, .jssocials-share-link:active, .jssocials-share-link:visited {
   color: #fff; }

[tabalinas]

Could you make a PR with the suggested change?

[mhm-amaya]

Of course, I would be pleased... Just give me some time as I am pretty busy at this very moment!