#login-form-openid {
    margin: 1em auto 2em auto;
    padding: 20px;
    width: 340px;
    border: 1px solid #FDBF3B;
    background-color: #FFEBC1;
    border-radius: 4px;
    box-sizing: border-box;
}

#login-form-openid input[type=submit] {
    display: block;
    width: 100%;
}