formatting problems

Hello,

I have created an All Reviews page, as shown here: https://www.joywithjo.com/reviews/
When I click on a review, there is a popup but I see the add to cart button has been renamed to “Shop Now” and it’s black in colour. See image here >> https://prnt.sc/q6vk3s

How can I get it to look the same as the popup on the individual product page (for e.g. link here: https://www.joywithjo.com/product/pink-doughnut-earrings/)? See image here >> https://prnt.sc/q6vkn0

Thank you.