Gramatical Error

>  #cat-photo-element {
>       background-color: green;
>     }

Note that inside your style element, you always reference classes by putting a . in front of their names. You always reference ids by putting a # in front of their names.

It is not in front it’s before their names.

Thank you for helping make FCC better. Bugs can be reported as GitHub Issues. Whenever reporting a bug, please check first that there isn’t already an issue for it and provide as much detail as possible.

Since this is a pretty pedantic change request, it’s probably only likely to happen if you submit a PR yourself. It’s pretty easy to submit a PR to improve the wording of a challenge. Just take a look at the Contributing Guide on the GitHub repo.