Problem in the "build a tribute page" challenge

the image that i have selected for my tribute page is very large and doesn’t fit into the container. How can I fix this? Please help.
Screenshot (32)

Setting width: 100%; height: auto; for the img should fix it.

yes, it did! i think i haven’t understood “img-responsive” because i used this class and was expecting the image to fit perfectly in the container. could you please explain what happened?
thank you.