#cas-login {
    margin: 3em auto 0;
    text-align: center;
}

#cas-login form {
    display: inline-block;
    max-width: 800px;
}

#cas-login input[type="submit"] {
    padding-left: 1em;
    padding-right: 1em;
    -moz-border-radius: 20px;
    -webkit-border-radius: 20px;
    border-radius: 20px;
    border: none;
    color: #fff;
    background-color: #229e43;
    height: 32px;
    font-size: 16px;
    font-weight: bold;
}

#cas-login input[type="submit"]:hover {
    background-color: #20ad46;
}

#cas-login input[type="submit"]:active {
    position: relative;
    top: 1px;
}

#login-form table {
    margin-top: 2em;
}