title: HTML / ERB - Standard-Button?
body: <p>In the picture you can see 2Buttons: <a href="http://www.bildercache.de/anzeige.html?dateiname=20140405-173000-578.png" rel="nofollow noreferrer">screenshot</a></p>
  <p>I want the user to just type in the email and password and accept it by pressing return.</p>
  <p>Is there an opportunity to set this up?</p>
  <p>I know that there is a option in C#, but I forgot how it's called. (Standard-Button?)</p>
  <p>There are 2 input-texts and 2buttons (Login-Form / Register)
  eMail - Password - Login-Btn and or-Register-btn.
  The user types in his email and password. After that he press &quot;return&quot; to accept and he is logged in.
  How is the options called that the login-btn is the ... first button to choose by pressing &quot;return&quot;?***</p>
  <p>That's what I am using:</p>
  <ul>
  <li>Ruby on Rails 4</li>
  <li>HTML</li>
  <li>HTML.ERB</li>
  <li>Bootstrap 3</li>
  </ul>