Question

This works:

display: box;
display: -webkit-box;
display: -moz-box;

This also works:

.attr('style','display: -moz-box')

This doesn’t 🙁

css( display, '-moz-box')

Demo:
http://jsfiddle.net/TomasReichmann/K3nQg/

I am building a plugin that displays a window-like resizeable modal box with header that can have variable height and content, that fits inside the box and displays a scrollbar if it’s content is too long.

Answer 1

You were missing the quotes around display; when passing a property and a value to .css(), both must be strings:

.css('display', '-moz-box')

jsFiddle demo