body {
text-align:center;
font-weight: normal;
color: #596163;
margin: 0;
padding:0;
background:#abc;
}
.p{
text-align:left;
width:800px;
margin:0 auto;
background:#fff url('../img/codebg.png') repeat-x;
padding: 20px 1.5em;
}
h1{
margin-bottom:0;
padding-bottom:0;
}
p{
text-align:justify;
 
}
.sub{
border-bottom: 1px solid silver;
font-style: italic;
font-size:.8em;
margin:0;
padding:0;
}
pre{
background:#fafafa;
border: 1px solid silver;
padding:.1em .3em;
}