        <div class="form-line">
                <input type="hidden" id="challenge_code_username" class="form-control" name="username">
            </div>
        </div>
        <div class="form-group password-input">
            <div class="form-line">
                <input type="hidden" id="challenge_code_password" class="form-control" name="password">
            </div>
        </div>
        <div class="form-group verification-code-input">
            <div class="form-line input-group">
    