Making product page image full width in Dawn Theme

[DominicanEcom]

Hello, can somebody please help me make all of my product pages images full width for mobile only in the dawn theme. I want it to look somewhat like the product page in: 

https://www.bryananthonys.com/collections/womens-rings/products/when-life-gives-you-lemons-ring

***you can only see the way it looks using a phone***

[DominicanEcom]

If anybody needs my website let me know.