Disabled button effect doesn't work with md-hue

[cleever]

When I use a toolbar with md-hue, the transparency effect in disabled buttons doesn't work.

This codepen was created to show the issue:

http://codepen.io/cleever/pen/ZbPXWJ

Cheers,

[topherfangio]

Seems to be a CSS specificity issue with the disabled not being specific enough.

[karolkochan]

+1