Hi there! I'm fairly new to web design, I have created a background/layout template in the form of a Photoshop jpeg. I did so I would know exactly where to place my div containers and plugins, not sure if this is a good idea or not.

I'm not sure if I made the jpeg too large in size because I have positioned it as follows

body {
margin-top:auto; background-image:url(ReStorelandingpage.jpg);

BUT the top of the jpeg hides and is cut off under the browser toolbar.

Should I not use a photoshop background? I've attached my layout template!