How to make product description go below the product images, but the checkout bar still follows.

[KingNex]

Store Preview: https://f7uut3rebs94via5-68142301409.shopifypreview.com
I can provide 2 examples to other shops who have done my idea shop layout. 

I'm using Dawn 12.0.0 and this is my first time working with CSS. I'm very lost. 

If possible I would also like to swap the sides so that the photos are on the left and the checkout button is on the right. 

[ProtoMan44]

@KingNex  Hi,
To change the position of the description or buttons, you need to modify the product.liquid file

second if you want to change the (button left, images right) block position it is possible with the theme customizer.

[KingNex]

I get that I have to modify the files but I do not know how. Again. This is my first time making a website on my own. I used gumroad in the past. I'm able to find the code but I don't know how to read or write it. 

[ProtoMan44]

@KingNex  It's a bit of a complex task, so it's hard to explain.

by the way which theme are you using now?