title: How does the value attribute of HTML <input> tag work?
body: <p>I new to programming and I am reading this django book and it says that in the template that codes for login page, the value attribute of input can redirect the user to the main page after the user log in successfully.</p>
  <p>When I want to find out more I see the HTML documentation but it says the value attribute accepts data to be submited to the server however it does not say how it causes a redirect in the URL.
  May I please know how does the value attribute cause a redirect to the URL?</p>
  <p>I added the Django tag but I am not sure if it’s a django question.</p>
  <p><a href="https://i.stack.imgur.com/OMei6.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/OMei6.jpg" alt="the photo of the code" /></a>
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