(This happens in Chrome and Firefox, with Monobook and Vector).
If you shrink the browser window a lot (like, 360px wide, so that the text appears as a long column with no more than a few words per line), you are still able to read the article and see the pictures, but the headings might be incomplete and the "Edit beta" link will be hardly visible or missing at all (I'm using 125% text zoom in Chrome, it gets better if I reduce this value).
Another user produced this screenshot of how he sees his page, https://en.wikipedia.org/wiki/File:VE_error-cut_off_section_edit_link.jpg . I don't get pics overlapping the text, but other elements do have that behaviour (the top of the page in particular is a mess :) ).
Version: 1.22.0
Severity: normal