Changes to shopify website product and blog pages

General information for the website: ladies yoga wear/activewear Kind of development: Customization of existing website Description of requirements/features: Changes to product and blog pages Extra services needed: Customization, Optimization Extra notes: Hi There, I run a ladies online brand called Tiny Fish Co. www.tinyfishco.com we run a shopify platform and I don't want to change my shopify store theme, but I do want to make some changes to the product page layout- for example I'd like the details (product description) to be in the same box with the size and colour info. Does this need to be coded in, as I can't seem to change it otherwise? I'd also like to make some layout changes to the blog page. Please get in touch if this is of interest and in your area of expertise.