you did this in the html course? did you include a jquery library?
no i didnt, but i also didnt include in other exercide and its work.
is it posted code good?
your jquery code isn't good, addClass should only contain the classname, not the dot (
if you edit/update your question, leave a reply so i get a notification. Your html code is not visible, take the following steps to make your code visible:
if this instructions are unclear, you can also insert 3 backticks before and after your code, like so:
``` <p>visible</p> ```
the backtick is located above the tab key on your keyboard