How to customise AddThis Sharing icons

As websites rely more and more on social networks to promote their presence, it's nice to be able to customise the default icons you usually get with “Add this” and “Share this”.
Good examples of social icons
How to customise sharing tools
The original code from will use default icons from its library. But you can change this and customise using your own images. Heres how:
1. Remove "addthis_default_style" from the main
2. Wrap the within an ul li
3. Add Class to each li "class="twitter" etc…
4. Style using CSS (See CSS code) Best to use a sprite image like this


Original HTML Code



CSS Code