how to style product name

I would like to increase the line-height for the product name title on its page since multiple lines of text look too close together. Do I add the line-height attribute to the class hikashop_product_name_main?
I am not sure where to find this.

Yes.
You need to add your CSS in the front end CSS file that you can edit via the interface in the Display tab of the configuration of HikaShop. Like that:

.hikashop_product_name_main{
line-height:2em !important;
}

Thank you so much for your quick reply. I absolutely love HikaShop. You make it so easy to use!
I didn't realize the css file was accessed by going to Display in Configuration. Your suggestion was perfect. Thanks!