Chrome Version: 67.0.3396.87 (Official Build) (64-bit)
OS: Linux

What steps will reproduce the problem?
(1) Navigate to http://jsfiddle.net/t9xmqun2/12/
(2) Observe the location of the images

What is the expected result?

Both images should be placed inside their container spans

What happens instead?

Images are placed outside their container spans

Notes:
- Also repros with LayoutNG ToT @ r568241
- Doesn't repro with Firefox 52.6.0 (64-bit)