Backdrop filters are only supported on these browsers: http://caniuse.com/#search=backdrop
I know, but in hype3 and safari I did not show
elements with applied backdropfilter can not have a backgroundcolour ...to achieve sthg like this you need to twinlike elements. one to apply the backdropfilter, another with backgroundcolour above ...
Just to clarify - backdrop filters only show if the background is set to none or the background color has alpha. Reducing the Opacity on the element is not enough.