Weird display behavior

I’m using Drupal 7 in my computer science capstone course, in which we are building a project management system. I’ve got the dhtmlxGantt chart displaying, but it’s kind of off. See the image below. Would anyone have any ideas as to why?


Hello!

Are you tried to change the Bartik theme?
It’s quite strange because I have tested in Chrome, IE an Firefox and running correctly…

On the other hand. How are you integrated with Drupal 7?
Are you making a custom xml with Views feed plus changing the .tpl?
A module?

Could you helpme with this?

ThankS!