body {
margin: 0;
font-family: times-roman;
font-size: 16px;
}

h1 {
 font-size: 140%; 
text-align: left;
 } 

h2 {
 font-size: 100%; 
text-align: left;
 }

#center { 
margin-left: 181px; /* the center block is placed according to the left block's width */ 
width: 586px;
 }