h3,h4,p {
    color: white;
    margin-left: 30px;
}
div#content {
    padding-left: 120px; 
    width:90%;
}

div.scene {
    display:table;
}
div.row {
    display:table-row;
}
div.cell {
    display: table-cell;
    vertical-align: middle;
}
div.content {
    position:relative;
    width:640px; 
    height:480px;
    overflow: hidden;
    background-color:white;
}
img.nav {
    display:block;
    margin-left:auto;
    margin-right:auto;
    opacity:0.6; 
    width: 30px;
    height: 30px;
    visibility: hidden;
}
body {
    background-color:magenta;
}
.nav { 
    color: white; 
}
.nav a:link { 
    color: white; 
}
.nav a:visited { 
    color: white; 
}
.nav a:hover 
{ 
    color: #666; 
}