E1. What browsers does Tempera work on?

Tempera is a CSS3 based theme. Because of this, only the current (last 3 years) versions of the browsers are supported: Firefox 4+, Chrome 7+, Opera 10+, Safari 5+ and Internet Explorer 10+.
Older versions, although they may display the theme almost correctly, are not officially supported.

Mobile browsers are all CSS3 capable and they will display the theme correctly.