These are some of the coolest web components you can build purely in css.
For viewing them in action please check following 2 links: http://fbfriends.nailfashionsweden.se/default.html http://responsivemenu.nailfashionsweden.se
1. Step progress bar
Usually you use it for sign up form, shopping cards and any consecutive action in webpage.
2. Vertical timeline
This component is used in notification panels, comment systems, etc. pretty cool one.
3. Customized checkbox
Replacement for the standard checkbox. Many professional websites use this technique.
4. Toggle Switch CSS3
Usually used in preferences and settings pages setting something on or off.
5. Customized range selector [advanced]
If you want the user to select a range or you want to visualize selecting of an option within a set.
6. Responsive menu for admin and dashboard interfaces
This menu is basically the way to make responsive menus that changes when switched to mobile, tablet and desktop. view it at: http://responsivemenu.nailfashionsweden.se
Soon I will create a library that provides all of these components in a way that you can include and use them in your projects. If you feel you want some other components and elements please post a comment.