title: why my bootstrap custon-file class not showing like the example
body: <p>I tried to show bootstrap view and this is the example in bootstrap docs</p>
  <p><a href="https://i.stack.imgur.com/4Zsu8.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/4Zsu8.png" alt="enter image description here" /></a></p>
  <p>but this is what my view looks like</p>
  <p><a href="https://i.stack.imgur.com/dapeV.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/dapeV.png" alt="enter image description here" /></a></p>
  <p>I showing it with safari and chrome but it shows the same. did anyone know why??</p>