title: The problem that screen enlargement when keyboard input in webView is left as it is
body: <p>We are currently developing an application using a web view with swift. Therefore, when you select a text field or list displayed in webvView, the selected text field or list is enlarged and a keyboard is an output on the screen, but after completing input with the keyboard, it remains in the enlarged display. I will.
  I want to return to the original screen size from keyboard output expansion. How do I solve it?</p>
  
  <p>Thank you.</p>