Using :focus to style outer div?

Question

When I begin writing text in the textarea, I want the outer div, with a class box, to have it\'s border turned solid instead of dashed, but somehow the :focus doesn\'t apply

Answer 1

As far as I am aware you have to use javascript to travel up the dom.

Something like this:

$("textarea:focus").parent().attr("border", "thin solid black");

you'll need the jQuery libraries loaded as well.