title: flutter: why my Positionned() widget doesn't showing?
body: <p>I added a positionned widget, but its content is not showing. I put a text outside the positionned widget and it shows. Can you help me please? (sorry ,I can't add images I don't have enough reputation :) my code:</p>
  <pre><code>@override
    Widget build(BuildContext context) {
    return Stack(
      children: [
        Text(&quot;test&quot;),
        Positioned(
        bottom: 0,
          left: 0,
            height: 100,
              width: 100,
                child: Text(&quot;test2&quot;),
  
          )
        ],
      );
  </code></pre>