How can I adjust image sizes in a multi-column Dawn theme layout?

Store Design
1

Hi,

Wondering if someone can help me…

I want to add 3 pictures that are quite high next to each other on my home page. It looks okay using the multi-column for 2 pictures but when adding the 3rd, the images become very small.

Does anybody know how to change the sizes when adding a 3rd so it covers more of the screen?

2

Any other tips such as a custom HTML are also welcom as long as i can portrait 3 pictures next to eachother