body {
    padding: 5px;
}
#pre_navbar {
    background: whitesmoke; 
    padding: 5px 2px;
}
p {
    margin: 0px;
}
a {
    color: #000;
    text-decoration: underline;
}
a:hover {
    color: aqua;
    text-decoration: none;
}
#catlinks, #catlinks a {
    font-family: Times New Roman, Times, serif;
}
div.product_cell {
    text-align: center;
}
div.product_cell img {
    margin-bottom: 20px;
}