#h1
{
text-align:center;
color:blue;
}
#p
{
text-align:center;
color:blue;
}
ul#list-nav 
{
  margin:20px;
  padding:0;
  list-style:none;
  width:525px;
}
ul#list-nav li {
display:inline
}
ul#list-nav li a {
text-decoration:none;
padding:5px 0;
width:100px;
background:#D8D8D8;
color:blue;
float:left;
}