Time in lightbox displays incorrectly

I’ve created a empty scheduler with all the css en js for a minimal functionality

But when the lightbox opens description is displayed correctly but the time isn’t.
I only see “Time Period” and the selection of the hour.

It seems like lightbox works correctly on base sample.
See link: docs.dhtmlx.com/scheduler/sample … _init.html

Could you provide more details? It would be nice if you’ll show your sample or link to problematic page.

I find out there was an css conflict. (from another css on the page)