div#background {
    width : 1000px;
    margin-left : -500px;
    position : absolute;
    left:50%;
    height:800px;
}

div#navi {
    width:100%; 
    height:40px; 
    margin-top:10px;
}

p,h1,h2,h3 {
    text-align:center;
    font-family:"Courier New",Helvetica,Arial;
}