title: Android Textbox using HTML5/CSS3
body: <p>I want to create the layout of this textbox:</p>
  
  <p><img src="https://i.stack.imgur.com/WxDey.png" alt="enter image description here"></p>
  
  <p>The one for email (or where he's writing his phone number) using <code>HTML5</code> and <code>CSS3</code>.</p>
  
  <p>The problem is the requirements for this textbox:</p>
  
  <ul>
  <li>it has to be responsive (width: 100%)</li>
  <li>I don't want anything on hover (no need for the bottom border to become blue)</li>
  <li>I don't want to use JavaScript</li>
  </ul>
  
  <p>Any suggestions? I tried several ways but I'm always having problem.</p>