How do I retrieve an HTML element's actual width and height?

Question

Suppose that I have a

that I wish to center in the browser\'s display (viewport). To do so, I need to calculate the width and height of the &l

Answer 1

If offsetWidth returns 0, you can get element's style width property and search it for a number. "100px" -> 100

/\d*/.exec(MyElement.style.width)