Widget _drawer() => Drawer(
        child: Column(
          children: <Widget>[
            AppBar(
              title: Text("Articles"),
              automaticallyImplyLeading: false,
              backgroundColor: RED_LIGHT,
              elevation: 0,
            ),
            Container(
              alignment: Alignment.centerLeft,
              padding: EdgeInsets.only(left: 20),
              constraints: BoxConstraints.expand(height: 80),
              child: Text(
                "This is my first article.",
                style: TextStyle(fontSize: 20),
              ),
            ),
            Divider(
              height: 0,
              color: TEXT_BLACK,
            ),
            Container(
              alignment: Alignment.centerLeft,
              padding: EdgeInsets.only(left: 20),
              constraints: BoxConstraints.expand(height: 80),
              child: Text(
                "This is my second article.",
                style: TextStyle(fontSize: 20),
              ),
            ),
            Divider(
              height: 0,
              color: TEXT_BLACK,
            ),
            Container(
              alignment: Alignment.centerLeft,
              padding: EdgeInsets.only(left: 20),
              constraints: BoxConstraints.expand(height: 80),
              child: Text(
                "This is my third article.",
                style: TextStyle(fontSize: 20),
              ),
            ),
            Divider(
              height: 0,
              color: TEXT_BLACK,
            ),
            Container(
              alignment: Alignment.centerLeft,
              padding: EdgeInsets.only(left: 20),
              constraints: BoxConstraints.expand(height: 80),
              child: Text(
                "This is my forth article.",
                style: TextStyle(fontSize: 20),
              ),
            ),
            Divider(
              height: 0,
              color: TEXT_BLACK,
            ),
            Container(
              alignment: Alignment.centerLeft,
              padding: EdgeInsets.only(left: 20),
              constraints: BoxConstraints.expand(height: 80),
              child: Text(
                "This is my fifth article.",
                style: TextStyle(fontSize: 20),
              ),
            ),
            Divider(
              height: 0,
              color: TEXT_BLACK,
            ),
            Container(
              alignment: Alignment.centerLeft,
              padding: EdgeInsets.only(left: 20),
              constraints: BoxConstraints.expand(height: 80),
              child: Text(
                "This is my sixth article.",
                style: TextStyle(fontSize: 20),
              ),
            ),
            Divider(
              height: 0,
              color: TEXT_BLACK,
            ),
            Container(
              alignment: Alignment.centerLeft,
              padding: EdgeInsets.only(left: 20),
              constraints: BoxConstraints.expand(height: 80),
              child: Text(
                "This is my seventh article.",
                style: TextStyle(fontSize: 20),
              ),
            ),
            Divider(
              height: 0,
              color: TEXT_BLACK,
            ),
          ],
        ),
      );