Material(
  elevation: 7,
  shape: RoundedRectangleBorder(
      borderRadius: BorderRadius.all(
        Radius.circular(15.0),)),
  child: Padding(
    padding: EdgeInsets.only(left: 10),
    child: TextFormField(
      // initialValue: "Rambo",
      style: TextStyle(
          fontSize: 17, fontWeight: FontWeight.bold),
      decoration: InputDecoration(
        labelText: "Your User Name",
        border: InputBorder.none,
        labelStyle: TextStyle(fontSize: 13),
      ),
    ),
  ),
),