Review title overlaps text + want to change the font and size of the submitted review copy

[peter550]

I am using the 'product review' app. (https://apps.shopify.com/product-reviews) on my site https://laz-the-plant-scientist.myshopify.com/. 

When writing the review the heading ('Write a review') overlaps the body text. I would like them to be separate. with a space below the heading. I would also like this to be lovato regular, and in green #575A17

I would also like the actual review copy - in this case, its 'Brilliant', to be lovato regular, like the rest of the site, and in green #575A17

I am using blockshop theme

P word to site is test

site is https://laz-the-plant-scientist.myshopify.com/. 

Any help much appreciated