title: How to change width to fill the remaining space (CSS)
body: <p>Take a look :</p>
  
  <p><img src="https://i.stack.imgur.com/QnwCd.jpg" alt="alt text"></p>
  
  <p>Result should be</p>
  
  <p><img src="https://i.stack.imgur.com/aq55L.jpg" alt="alt text"></p>