How to reduce the space between <p> tags?

use css :

p { margin:0 }

Try this wonderful plugin http://www.getfirebug.com :)

EDIT: Firebug is now closed as a project, it was migrated to https://www.mozilla.org/en-US/firefox/developer

As shown above, the problem is the margin preceding the <p> tag in rendering time. Not an elegant solution but effective would be to decrease the top margin.

p { margin-top: -20px; }

The CSS margin property can be used to affect all paragraphs:

p {
  margin: XXXem;
}

Replace XXX with your desired value; for no space at all use:

p {
  margin: 0em;
}