H1, H2, H3
		{
		font-family: arial, trebuchet ms;
		text-decoration: none;
		color: navy;
		}

h1 {
  font-size: 1.12em;
  margin-top: 1.1em;
  margin-bottom: 0.5em;
  }

h2 {
  font-size: .75em;
  margin-top: .75em;
  margin-bottom: 0.5em;
  }

h3, h4 {
  font-size: 0.55em;
  margin-top: .5em;
  margin-bottom: 0.333em;
  }

#leftnav h2:hover {text-decoration: underline; color: red; background: yellow}

#content 
{
width:766px;
margin-left:auto;
margin-right:auto;
background:white;
}


body 
{
background:gray;
}