<div class="mask">banner遮罩区</div>

        <div class="form">

            <form action=" ">

                <p>

                    <input type="text"placeholder="your Name">

                    <input type="tel"placeholder="your Telephone">

                    <input type ="email"placeholder="your Email">

                </p>

                <p>

                    <textarea cols="50"rows="20"placeholder="Write Your Comment"></textarea>

                </p>

                <p>

                    <button>SEND MESSAGE</button>

                </p>

            </form>

        </div>

    </div>