hover colour darker

Giganews Newsgroups
Subject: hover colour darker
Posted by:  Andrew Poulos (ap_pr…@hotmail.com)
Date: Tue, 21 Oct 2014

I have a page with lots of different coloured buttons on it. When the
cursor hovers over a button the background colour is to "darken".

Rather than set each hover colour individually is there a way to make
all the button colours change with respect to their normal colour (that
is, I don't want the hover colour for all buttons to be, say, blue)?

Andrew Poulos