需要HTML字段不适用于IOS

Question

这是我的自定义构建HTML表单

<form id="i-recaptcha" action="#" method="POST">

<input class="first_name_popup" id="first_name" maxlength="40" name="first_name" size="20" type="text" placeholder="First Name" required="required">

<input class="last_name_popup" id="last_name" maxlength="80" name="last_name" size="20" type="text" placeholder="Last Name" required="required">
<input class="email_popup" id="email" maxlength="80" name="email" size="20" type="text" placeholder="Your Email" required="required">

<input class="submit_button_popup" id="submit_button" type="submit" name="submit" value="GET A FREE CONSULTATION!">
</form>

我如何在IOS上完成这项工作？现在我提交了这么多空白表格。

谢谢。