Technical tips for writing a screen play

This web site gives basic instructions on how to write a standard screen play. From type of paper to format, this site explaines it all. "Screenplays are traditionally written on 8 1/2" x 11" white 3-hole punched paper. No page number is printed on the first page. The type style used is the Courier 12 font. The top and bottom margins are between .5" and 1". The left margin is between 1.2" and 1.6". The right margin is between .5" and 1"." if you are looking for practical tips when writing a screen play this site is is perfect.