[Help Wordpress] Settings for scaling images responsively in proportion whilst filling remaining space BOTH vertically and horizontally.

Hi I am trying to get the slider to scale responsively BOTH vertically and horizontally to fit the remaining space on the page whilst keeping the images in proportion.

I have seen this here on one of the RoyalSlider demos ( http://www.pepkarsten.com/ )

My link is ( http://themightyant.com/wp-multi5-tma/frush/royalslider/ )

on my link I have tried setting the height, width, image heights, image scale, etc, but cannot get it to work.

Any help with settings would be greatly appreciated.

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help.dimsemenov.com