I ran into the problem, that the cards within a tab navigation in Angular Material were cut off.
Using md-dynamic-height soleved this issue. Thanks @camden_kid for the help!
It's because the md-tabs element on that site (http://rc.sonnige-aussichten.ch/) does not have the attribute md-dynamic-height:
Taking the markup in your question I created a CodePen. If you remove that attribute you will see the problem you mention.
From the docs: