body {
 text-align:center;
 font-family:Arial;
 font-size:small;
}
.bodyTable {
    width: 640px;
    margin-left: auto; 
    margin-right: auto;
    text-align:left;
}
.tdHead {
    text-align:center;
    height:60px;
    font-size:xx-large;
}
.tdMenu {
    width: 100px;
    vertical-align:top;
}
.tdMenu ul {
 margin-left:15px;
}
.tdContent {
    width:540px;
    padding-left:5px;
    padding-right:5px;
    font-size:larger;
    vertical-align:top;
}
pre {
font-size:10px;
margin-top:5px;
margin-bottom:5px;
}
.contentHead {
font-size:large;
}