Step 77- Cat Photo app

Can anyone help me on this?

Step 77

Now add the bottom-line class to the second hr element so the styling is applied.

The link is Learn Basic CSS by Building a Cafe Menu: Step 77 | freeCodeCamp.org

so far my code is :

<hr>
      hr="bottom-line">

you did it the wrong way

when putting a class it most be inline with the opening tag
like this

<hr class="bottom-line"