Hello,
Thanks for your message. You can customize any content/page displayed through our plugin VikRentCar, by using the Overrides Manager tool in the Configuration page.
Thanks to the overrides technique, all of your customized template files for any page or widget, will be preserved by installing future updates through the WordPress native functions. Overrides are needed whenever you need to adjust the HTML structure of a specific page generated by VikRentCar, or whenever you would like to customize the PHP or JS code.
Moreover, from the configuration page of our plugin you can add some custom CSS rules in the apposite CSS file for customization. Alternatively, you can always add your custom CSS rules to your Theme.
We hope this helps!
The VikWP Team