body {
  background-color: #D3D3D3;/*light gray*/
/*  background-image: url("images/pat.jpg");*/
/*  background-repeat: repeat;*/
  margin-left: 20%;
  margin-right: 20%
 }

#main {
    background-color: #F0F0F0;
    /*background-image: url("images/pat.jpg");
    background-repeat: repeat;*/
    float: none;
    width: 80%;
}

h1 { 
/*    margin-left: -8%;*/ 
}

h2,h3,h4,h5,h6 { 
/*    margin-left: -4%;*/
}

img {
  margin: 10px;
  border: 0;
 }