title: Paint a side of a card - Flutter
body: <p>Picture: <a href="https://i.stack.imgur.com/abMFw.png" rel="nofollow noreferrer">Card</a></p>
  
  <p>I'm trying to paint my Card widget like 
  that (shown in the picture) how do I do that?</p>
  
  <pre><code>BoxDecoration(
      border: Border(
        left: BorderSide( 
          color: Colors.black,
          width: 3.0,
        ),
      ),
      borderRadius: BorderRadius.all(
          Radius.circular(5.0) 
      ),
    ); 
  </code></pre>
  
  <p>I tried this, but borderside and borderadiusall conflicts with one another so i get an error</p>