CSS / HTML Sidebar & Content Problem

$result = $mysqli->query("SELECT * FROM $tbl_name WHERE email='$myusername' and passwort='$mypassword'");

    // Mysql_num_row is counting table row
    $count = $result->fetch_object();

    $row = $result->fetch_array();
    $rang = $row['rang'];


 if($count >= 1) //Zeile 33
    {
            if($rang == 1)
            {
                    header("location:PAGES/MEMBER/index.php");
            }
            else if($rang == 2)
            {
                    header("location:PAGES/LEADER/index.php");
            }
            else
            {
                    echo "Ungültiger Rank!";
            }
    // Register $myusername, $mypassword and redirect to file "login_success.php"

    }
    else
    {
            echo "Falscher Benutzername oder Passwort";
    }