How to set margins 0 on print preview?

Question

Where am i doing wrong?

This is the normal print preview:

But I want to see this picture (without dragging margin arrows)

This is the css codes and preview:

Answer 1

Yes. It is possible to alter your margins in a page printout. The rule would look like:

@page {     margin: 0; } 

This will not work in Firefox as of now. If you check their developer reference on the @page CSS support, you can see what browsers do support @page.