Simplify the product options table

-- url of the page with the problem -- : www.javelincommunications.com/build-your-dream-stanchion
-- HikaShop version -- : 4.7.1
-- Joomla version -- : 3.10.11

Hi, right now it looks like this. Very busy with distracting borders.

I can see the Tr/Td html table code in my inspector but find that overrides via custom.css file don't work. I am sure there must be a simple trick to making this possible. We're going for a simple, clean, spacious look, dispensing almost entirely with borders. Do I make these customizations some other way than in custom.css?
Or, will it work to use something like #jikashop as a selector? Is that my problem?
Thanks you!
-Jim Gribble

I have JCH set low and it hasn't caused this kind of problem before but I will try turning it off. My previous custom.css instances in Hikashop are all working fine.
I wonder if it's just something I am doing wrong.
In editing the tables in the custom.css file, do I need to use a special selector?
I'm thinking that might be: #hikashop_product_options?
Thank you!
-Jim Gribble

Solved my problem with this code at end of custom.css file.

#hikashop_product_characteristics, #hikashop_product_options {
border: none;
}
.hikashop_product_characteristics_table td, .hikashop_product_options_table td {
border: none
}#hikashop_product_top_part h1 {
border-bottom: none;
}
Muich cleaner and more modernist. Thanks for pointing me in the right direction.
-Jim Gribble