How to remove button outline in Opera on focus

Question

Does anybody know how to remove the dotted outline on buttons in Opera?

Answer 1

I have done it.

Here you go: http://jsbin.com/oniva4. [tested on Opera 10.5/11]

The secret is using outline-offset:-2px; (effectively covering the dots) and the background's color for the outline. outline-offset is supported since version 9.5.