.page-nav {
    margin: 0;
}

#main {
    position: relative;
    height: 829px;
    background: center center no-repeat;
}

.login-page-form {
    position: absolute;
    left: 50%;
    margin: 100px 0 0 -200px;
    padding: 40px 0;
    width: 400px;
    border-radius: 4px;
    background-color: #fff;
}

    .login-page-form iframe {
        display: block;
        width: 320px;
        margin: 0 auto;
    }