body {
    padding-top: 20px;
}

.nav-tabs > li, .nav-pills > li {
    float: none;
    display: inline-block;
    *display: inline; /* ie7 fix */
    zoom: 1; /* hasLayout ie7 trigger */
}

.nav-tabs, .nav-pills {
    text-align: center;
}

.panel-heading {
    margin-bottom: 20px;
}