Portal.view.home.MainContainer: logo excluded from the scroll area

[tobiu]

a weird CSS issue. @mxmrtns assigned it to you, in case you have an idea. if not, i can dig into it.

in short: i added 3 content boxes and enabled overflow-y: scroll. scrolling down to see further content at the bottom works fine.

scrolling to the top however does not:

in case there is no clean solution, we could just nest the logo into another div tag with a fixed height.