I see that in the first two main sections of the site, you have given both left containers a max-width of 60%, and both right containers a max-width of 40%. To be clear, this is not the same as giving those aforementioned containers hard set widths. max/min-width only determinese how wide or thin the container can be, not how wide or thin it will be. As you can see in my example below, when setting hard widths for each container, the result that you were aiming for with the break tags is achieved, in addition to standardizing the sizes of the two main images:
I see that in the first two main sections of the site, you have given both left containers a max-width of 60%, and both right containers a max-width of 40%. To be clear, this is not the same as giving those aforementioned containers hard set widths. max/min-width only determinese how wide or thin the container can be, not how wide or thin it will be. As you can see in my example below, when setting hard widths for each container, the result that you were aiming for with the break tags is achieved, in addition to standardizing the sizes of the two main images: