.login #nav {
    text-align: center;
    padding: 0;
    color: transparent;
}
.login #nav a:first-child {
    display: inline-block;
    width: 90%;
    margin: 0 auto 10px auto;
    background: #2271b1;
    border-color: #2271b1;
    color: #fff;
    border-radius: 3px;
    padding: 8px 14px;
}

.login #nav a:first-child:hover {
    background-color: #135e96;
}