Sticky buttons

[tk-king]

The styled edge-ml buttons are stuck in their "selected" state after clicking on them.

[omeryagmurlu]

This is appprently a feature of bootstrap: twbs/bootstrap#12364

I've changed the style to make it look less like an eyesore, but the button that has the focus is still distinguishable (5% brightness difference only).

with focus:

without: