You are changing things in the code that you weren’t directed to. The directions didn’t say to delete
img {
Width:600px;
}
It also didn’t say to add display:block; to the css. I don’t know if that’s the culprit for it failing but Try only doing what the directions say and see what happens.
@outoftime Not sure then. Check that your web browser isn’t zoomed in or out at a level that could be causing the program to think that your css is wrong.