How to change the color of my submit button

1

hi, I dont know if its simple or not but I would like to change the color of my submit button, here www.dpelufo.com/home.htm

Enviar = Submit :slight_smile:

<input name="submit" type="submit" value="Enviar">

If someone can point me out in how to do it it would be great, or any clue :stuck_out_tongue:

Thanks