父内容高度未随标签内容高度扩展

I am trying to display tabs content in pure css, but i am unable to fix this height for parent. if content is more in tabs content parent content(red area) not expanding. please help to to expanding the parent (red area) when content is more and after clicking on other tab, previous tab content not hidden. please need help in two cases.I am trying to display tabs content in pure css