Ren here from the Shopify Support team, here to help.
Sounds like you're looking for make for formatting changes to your email notification template. This is certainly doable, but does take some knowledge on CSS and HTML. In order to access the HTML module, you'll want to head to Settings > Notifications and select the template you'd like to edit.
If you're not comfortable attempting to code, I recommend reaching out to one of our Shopify Experts from the Expert Marketplace. This will allow you to post a job and accept proposals from different experts to help you find a good fit for your request. You may also find some luck posting on our Design Forum and getting assistance from developers that have made similar changes before.
Hope that helps!
Ren | Social team @ Shopify
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