What is the simplest jQuery way to have a 'position:fixed' (always at top) div?

Question

I\'m relatively new to jQuery, but so far what I\'ve seen I like. What I want is for a div (or any element) to be across the top of the page as if \"position: fixed\" worked

Answer 1

In a project, my client would like a floating box in another div, so I use margin-top CSS property rather than top in order to my floating box stay in its parent.