<section class="sec-action">
    <div class="container-fluid">
        <div class="action-clip text-center">
            <h2>想要快速製作影音內容？<br>
                立即註冊，開始創作！</h2>
        </div>
        <div class="action-triangle">
        </div>
    </div>
    <div class="container text-center">
        <form action="" method="post">
            <input type="email" placeholder="請輸入信箱" class="action-input">
            <input type="submit" value="立即開始" class="action-btn">
        </form>
    </div>
</section>