modifying services description background

We are unable to read text at one section of the booking form because the background and the text of the service description box are both white. It appears that modifying the the CSS file located at /media/com_osservicesbooking/assets/css/style.css seems to control this element. If we update the CSS file to fix this, will the fix be lost each time a new update of the extension is released? Is there a way to change: 
.div_category_details,.div_service_details{background:#fff
to
.div_category_details,.div_service_details{background:#666

Can this element be changed with customer CMS in the Joomla backend OS Service Booking dashboard? How would I do this? I cannot find custom CSS instrstructions in the  component documentation and hope someone can help.

 

Hi,
Could you please submit ticket on category: OS Services Booking and provide your site url with super admin account. I will figure out the cause of css issue for you
Thanks
Dam

This was an issue with my Joomla template. There was no problem with the OS Services Booking CSS styling. I have resolved the problem with the site's Joomla template. Thanks.

OK, let me know if you need any further help