hour and minute sliders extend beyond the calendar dialog

[barkingdoghosting]

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I've just installled this add-on, and it works very well. I have a UI issue where the hour and minute slider extend beyond the calendar dialog.

Has anyone else seen this behavior? The css for ui-widget looks like the correct place and it seems to work, but this will certainly affect other jquery elements.

Suggestions? Or do I have an issue with the css file for this addon that I've missed?

I've attached a screen capture of the dialog.