body {
    font-family: arial, sans-serif, helvetica;
    font-size: 1em;
    background-color: white;
}

#center {
    display: block;
    margin-left: auto;
    margin-right: auto;
}

#center {
    text-align: center ;
}

hr.medium {
    border: 1;
    background-color: #000;
    color: #000;
    height: 2px;
}