div#left 
{ 
    float: left; 
    width: 170px; 
    text-align: center;
}

div#right 
{ 
    float: right; 
    width: 170px;
    text-align: center;
}

div#head1 
{ 
    height: 170px; 
    text-align: center;
}

div#head2
{ 
    height: 170px; 
    text-align: center;
}

div#img_left,
div#img_right 
{ 
    height: 170px; 
    text-align: center;
}

div#content 
{ 
    margin: 0 170px 0 170px;
    padding: 10 1em;
    text-align: center;
}