Lesson 8/13 - Volume, play and pause button

I am here :

<!DOCTYPE html>
  <title>Ollie Bike Sharing</title>
  <meta charset="utf-8"/>
  <link rel="stylesheet" type="text/css" href="main.css">
  <h1>0llie Bike Sharing</h1>
  <h3>Share Your Pedals with the World</h3>
  <p>We are Romanian Procurers. We are not alone but we are the best !</p>
  <p>Here is a <a href="cities.html">list</a> of cities where you can find us.</p>
  <video width="320" height="240" controls=play,pause,volume>
  <source src="https://s3.amazonaws.com/codecademy-content/projects/make-a-website/lesson-1/ollie.mp4" type="video/mp4"> </video>

What can I do to see the on the right screen, functioning the play, pause and volume button ?
Thank you !

<Below this line, add a link to the EXACT exercise that you are stuck at.>

<In what way does your code behave incorrectly? Include ALL error messages.>
It is not function the play, pause, volume button.

May be written with a boolean attribute:

    <video width="320" height="240" controls>

it is not working, this was my first option …

Any one, an answer … something … thank you.