widget.dart

body: Container(
    padding: EdgeInsets.all(10.0),
    child: Column(
      crossAxisAlignment: CrossAxisAlignment.stretch,
      children: <Widget> [
         Card(
          color: Colors.white70,
          child: Container(
            padding: EdgeInsets.all(10.0),
            child: Column(
              mainAxisAlignment: MainAxisAlignment.spaceBetween,
              crossAxisAlignment: CrossAxisAlignment.center,
              children: <Widget> [ 
                Text("I love Flutter", style: TextStyle(fontSize: 20.0, fontWeight: FontWeight.bold)),
                Icon(Icons.favorite, color: Colors.redAccent, size: 50.0)
              ]
            )
          )
        )
      ]
    )
  )