Images in pages change alighnment

I have added a page to my website which has a few images that need to be aligned down the left hand side of the page under each other. When I add them they look fine, but once I publish the page, they seem to aligned incorrectly under each other. I have checked that everything is justified to the left and that there is enough space under each separate image but they still align wrong. Any ideas would be appreciated. The page is https://www.top100childrensbooks.com/books-for-babies/

Thanks.