Question

How I can set popup window size bigger than normal?

http://d.pr/Md3E+

There is too many space at the top and the bottom of the description.

Answer 1

You can pass the width and height in as parameters. So your constructor may look like this:

$("a[rel^='prettyPhoto']").prettyPhoto({
    default_width: 500,
    default_height: 344
});

You can see the full list of options here