#globalNav {
    position: relative;
    background-color: Transparent;
    margin: 0 auto;
    vertical-align: top;
    text-align: center;
    width: 840px;
    padding: 20px;
    height: 170px;
}
#globalNav img {
    padding: 0;
    margin: 0;
    vertical-align: top;
}
#portfolio a {
    position: absolute;
    top: 15px;
    left: 0;
    display: block;
    width: 160px;
    height: 126px;
    text-decoration: none;
}

#books a {
    position: absolute;
    top: 15px;
    left: 190px;
    display: block;
    width: 160px;
    height: 164px;
    text-decoration: none;
}

#bio a {
    position: absolute;
    top: 0;
    left: 367px;
    display: block;
    width: 150px;
    height: 179px;
    text-decoration: none;
}


#links a {
    position: absolute;
    top: 13px;
    left: 540px;
    display: block;
    width: 150px;
    height: 203px;
    text-decoration: none;
}


#contact a {
    position: absolute;
    top: 10px;
    left: 720px;
    display: block;
    width: 150px;
    height: 166px;
    text-decoration: none;
}