text offset when using html tags in tabbar

I have a web application where i use dhtmlxTabbar and in order to display text with the image i uset html container like

Vehicles Info

when i load the application the image and the text are displayed but they start from the center of the tab. When i click on the tab they get displayed correctly.

Any idea how to fix this issue?

Please have a look at the sample:


The issue is not reproduced there. If the problem is not solved, you may attach a complete demo.