#logo {
color: #333;
position: absolute;
width: 510px;
height: 203px;
left: 50%;
margin-left: -255px;
}

#menu {
position: absolute;
width: 464px;
height: 37px;
left: 50%;
margin-top: 227px;
margin-left: -232px;
}
#home {
color: #333;
width: 152px;
height: 37px;
}
#portfolio {
color: #333;
width: 152px;
height: 37px;
position:absolute;
left: 50%;
margin-left: -76px;
margin-top: -37px;
}
#contact {
color: #333;
width: 152px;
height: 37px;
position:absolute;
left:100%;
margin-left: -152px;
margin-top: -37px;
}

#content {
font-family: Verdana, Arial, Helvetica, sans-serif;
font-size: 0,7em;
color: #333;
position: absolute;
width: 600px;
height: 300px;
left: 50%;
margin-top: 290px;
margin-left: -300px;
}