title: How to align card view center in flutter
body: <p>I have designed this layout in the flutter. I want to move the card into the center (horizontally and vertically). Card width and height should be wrap content.</p>
  
  <p>Does anyone know how to achieve this ?</p>
  
  <pre><code>class ContactUsScreen extends StatelessWidget {
    @override
    Widget build(BuildContext context) {
      return Scaffold(
          appBar: AppBar(
            title: Text("CONTACT US"),
            backgroundColor: Colors.redAccent,
          ),
          body: Card(
            child: Column(
              crossAxisAlignment: CrossAxisAlignment.start,
              children: &lt;Widget&gt;[
                Container(
                  child: Text("Need Help ?",
                      style: TextStyle(
                          fontWeight: FontWeight.bold,
                          color: Colors.black,
                          fontSize: 22)),
                ),
                Container(
                  margin: EdgeInsets.only(top: 10),
                  child: Text("Max MagiX,",
                      style: TextStyle(
                          fontWeight: FontWeight.normal,
                          color: Colors.black,
                          fontSize: 16)),
                ),
                Container(
                  child: Text("San Francisco,",
                      style: TextStyle(
                          fontWeight: FontWeight.normal,
                          color: Colors.black,
                          fontSize: 16)),
                ),
                Container(
                  child: Text("CA, USA",
                      style: TextStyle(
                          fontWeight: FontWeight.normal,
                          color: Colors.black,
                          fontSize: 16)),
                ),
                Container(
                  margin: EdgeInsets.only(top: 10),
                    child: Row(
                  children: &lt;Widget&gt;[
                    Icon(Icons.phone),
                    Container(
                      margin: EdgeInsets.only(left: 2),
                      child: Text("+1 8002 8002 82",
                          style: TextStyle(
                              fontWeight: FontWeight.normal,
                              color: Colors.black,
                              fontSize: 16)),
                    )
                  ],
                )),
                Container(
                    margin: EdgeInsets.only(top: 10),
                    child: Row(
                      children: &lt;Widget&gt;[
                        Icon(Icons.email),
                        Container(
                          margin: EdgeInsets.only(left: 2),
                          child: Text("hello@xyz.com",
                              style: TextStyle(
                                  fontWeight: FontWeight.normal,
                                  color: Colors.black,
                                  fontSize: 16)),
                        )
                      ],
                    ))
              ],
            ),
          ));
    }
  }
  </code></pre>
  
  <p><a href="https://i.stack.imgur.com/QbeXb.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/QbeXb.png" alt="enter image description here"></a></p>