Zocial CSS social buttons

I basically rewrote this entire set so they are full vector buttons, meaning:

@font-face icons
custom font file for all social icons
icon font use private unicode spaces for accessibility
em sizing based on button font-size
support for about 67 different services
buttons and icons supported
no raster images (sweet)
works splendidly on any browser supporting @font-face
CSS3 degrades gracefully in IE8 and below etc.
also includes generic icon-less primary and secondary buttons

How to use these buttons

<button class='zocial facebook'>Button label here</button>

or

<a class="zocial twitter'>Button label</a>

Can be any element e.g. a, div, button etc.
Add class of .zocial
Add class for name of service e.g. .dropbox, .twitter, .github
Done :-)

Check out zocial.smcllns.com for demo and code examples.

Problems, questions or requests to @smcllns