URL: http://m.ebay.fr/itm/Asics-Gel-Quantum-360-Knit-Triple-Black-Men-Running-Shoes-Sneakers-T728N-9099-/262887077537?NAV=HOME&varId=561885592930
Browser / Version: Firefox Mobile Nightly 55.0a1 (2017-05-03)
Operating System: Nexus 5 (Android 6.0.1) - Resolution 1080 x 1920 pixels (~445 ppi pixel density)
Problem type: Something else - I'll add details below

Steps to Reproduce

1. Navigate to: http://m.ebay.fr/itm/Asics-Gel-Quantum-360-Knit-Triple-Black-Men-Running-Shoes-Sneakers-T728N-9099-/262887077537?NAV=HOME&varId=561885592930
2. Observe “Pointure” (“Shoe Size”) option alignment.

Expected Behavior:
The option is centered.

Actual Behavior:
The option is misaligned (top side).

Note:

1. Reproducible for all drop-down menu boxes throughout the site (e.g. Color, Size, Product).
2. Reproducible on Firefox 52.0 Release
3. Not reproducible on Chrome (Mobile) 57.0.2987.132.
4. Screenshot attached.

Watchers:
@softvision-sergiulogigan
@softvision-oana-arbuzov

sv; country: fr

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