table {
    margin: 0 auto;
}

tr > td:first-child {
    text-align: right;
    padding: 10px;
}

tr > td:nth-child(2) {
    text-align: left;
    padding: 10px;
}

tr#username-row > td {
    padding-bottom: 0;
}

td#username-warning {
    color: gray;
    font-size: 80%;
    padding: 0;
}

.register-error {
    color: red;
}