title: How to resove label overlapping issue for React Material UI auto complete component
body: <p>I am new to react material UI. I want floating label for auto complete component. but after selecting any value from the auto complete options label should stick on the top.
  Please goto <a href="https://codesandbox.io/s/pyl0wqq17" rel="nofollow noreferrer">codesandbox</a> see the actual problem.</p>
  <p>Thanks in advance</p>