I have a fixed filter system positioned at the bottom of the screen (I intend to animate this popping up later):
<nav></nav>
<ul class="filter">
<li>filter option</li>
<li>filter option</li>
.....
</ul>
When you make the window smaller, the filter system goes over the nav. How can I prevent the filter system from going over the nav, I want it to line up with the base of the nav and then allow the user to scroll up and down it.
I've tried relatively positioning the filter system below the nav - this way it never goes over the top, but it's not aligned to the bottom of the window.
So I would like a filter system that sits at the bottom of the screen, if it's tall enough or the users window is small enough, I want the user to be able to scroll the filter list.
Is this possible with just CSS?