Change 195638 had a related patch set uploaded (by Robmoen):
Add scrollable element to collections content overlay

https://gerrit.wikimedia.org/r/195638

@JKatzWMF is it essential for just that part of overlay to scroll? It might be easier for time being to make entire thing scrollable.

Look at iPhone 4 for example - that's not much scrolling room and we are not even showing the text extract in that example which pushes it down further!

(Replicate this in http://en.m.wikipedia.beta.wmflabs.org/wiki/Albert_Einstein?mobileaction=alpha by shrinking your browser screen to 320x480

I added a patch to make the form on a single line but as you can see this still is a little cramped (and there are much smaller devices than iphone 4)

Change 195784 had a related patch set uploaded (by Robmoen):
Make collection content overlay scrollable

https://gerrit.wikimedia.org/r/195784

Change 195638 abandoned by Robmoen:
Add scrollable element to collections content overlay

Reason:
Abandoning in favor of https://gerrit.wikimedia.org/r/#/c/195784/

https://gerrit.wikimedia.org/r/195638

As a first pass we've made the entire thing scrollable. We know it's not exactly what you want but it makes the feature useable and we can iterate off that.

Change 195784 merged by jenkins-bot:
Make collection content overlay scrollable

https://gerrit.wikimedia.org/r/195784

There seems to be a limit to the scrolling then the page starts to scroll (As shown here on phone screenshot where my hello kitty kitty collection wont appear):

Desktop seems even jenkier.

@Jdlrobson FYI ^ ---nevermind, created bug to rep this: T92791