see: https://bugs.webkit.org/show_bug.cgi?id=26559
workaround: (in case child element height is 100%, apply min-height: inherit to it).
generic workaround: figure out min-height of child element based on its height and min-height of current element.
example:
element:
height -> 100%
min-height: 200px;
child element:
height: 50%;
min-height: 100px;// 50% * 200px