Change Details

**To reproduce:** Put a gallery slideshow inside a `<div>` with `max-width` set to a value less than approx 270px (and images larger than this in the gallery). **Actual results:** The "right arrow" control wraps onto the next line. **Expected results:** The gallery controls should have a responsive layout, reducing the spacing between themselves as the available width reduces. One way to do this would be to specify the `ul.gallery.mw-gallery-slideshow .mw-gallery-slideshow-buttons .oo-ui-buttonElement` left/right margins in percentage terms (e.g. `5%`) rather than a fixed `2em` value. Reported on enwiki's [[https://en.wikipedia.org/w/index.php?title=Wikipedia_talk:WikiProject_Portals&diff=844815400&oldid=844803048|Wikipedia talk:WikiProject portals]].

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