Guest Disk Usage: bar graph displaced

[idandr]

After our upgrade from version 1.7.1 to 1.8.0, bar graphs for guest disk usage have an issue:

I would expect the following bar graphs (as in 1.7.1):

Switching off and on display: inline-block; in the developer tools (last line in the following screenshot) toggles between both representations.

Maybe a CSS issue in vspheredb 1.8.0?