Icons, buttons and links are another overlooked element on many pages. But they can also make a huge impact on your overall design. Below are some resources for styling better ones.

Add Progressive Icons to Your Site Using :after pseudo-element
This tutorial shows how to use descriptive icons for your links, mainly to show the type of file being linked to (such as a PDF or ZIP archive).

Super Awesome Buttons with CSS3 and RGBA
A tutorial for creating great buttons using CSS3 and alpha-blending techniques.

Scalable CSS Buttons Using PNG and Background Colors
A tutorial for creating buttons scalable both horizontally and vertically using PNG images. The technique degrades gracefully, so even users in IE6 will still see the button (just without the PNG).

Add File Type Icons next to your links with CSS
Another tutorial for adding file type icons to your links.

22 CSS Button Styling Tutorials and Techniques
Here’s a comprehensive resource list covering more than 20 techniques for creating buttons of all shapes and sizes with CSS.

CSS Tricks’ Link Nudge
A tutorial for creating links that nudge sideways when they’re hovered over.

Sanscons
This is an icon set that can be recolored using just CSS.