st-style-type:none;
    list-style-image:none;
    margin: 0;
    padding: 5 0 5 0;
    text-align:center;
}
li {
    display:inline;
    padding: 0 10 0 10;
}

li a {
    font-family: Helvetica, sans-serif;
    text-decoration: none;
}

div {
    margin-left:auto;
    margin-right:auto;
    width:600px;
}

div.center{
    margin-left:auto;
    margin-right:auto;
    text-align:center;
}   

div#header{
    border-style: none none solid none;
    border-color: black;
    border-width: 2px;
}

h1 {
    text-align:center;
}

h1, h2, h3 {
    font-family: Helvetica, sans-serif;
}

p {
    text-align:justify;
}

#footer {
    text-align:center;
    font-size:0.9em;
    border-style: solid none none none;
    border-color: gray;
    border-width: 1px;
}