.r3df-header {
    border-bottom: 1px solid #000;
}

.r3df-alert {
    color:red;
    font-weight:bold;
}

.r3df-help {
    border-top: 1px solid #ccc;
    margin-top: 50px;
    padding-top: 10px;
}

table + h3 {
    margin-top: 3em;
}