Steps to reproduce:
1. Open the Opera Mini client and make sure its Data Savings mode is set to Extreme.
2. Open this URL: https://en.m.wikipedia.org/wiki/Opera_Mini
3. Scroll 'Preview releases' section and find the mentioned table
Actual result:
The contents of the table are overflown (see attached image){F24891936}.
Expected result:
The contents of the table are displayed properly.
== Developer Notes
* go to settings and data savings and select "Extreme" from dropdown to turn on data savings mode.
`display: flex` CSS rule is used for many parts of this table, and it is known to work incorrectly in Opera Mini's Extreme mode.
by making use of a "supports query" we could limit these rules to browsers that support display:flex (at cost of those that do not support the supports query) https://gerrit.wikimedia.org/r/452840. This would break tablet support for IE11 (https://caniuse.com/#feat=css-supports-api) but is probably worth it given the larger market share of Opera Mini (about 1.3% of mobile page views compared to IE11's 0.2% [1])
[1] Calculated by looking at a week's worth of data inside turnilo.wikimedia.org