part of widgets; class DrawerHeader extends Component { static Style _style = new Style(''' display: flex; flex-direction: column; height: 140px; -webkit-user-select: none; background-color: ${BlueGrey[50]}; border-bottom: 1px solid #D1D9E1; padding-bottom: 7px; margin-bottom: 8px;''' ); static Style _spacerStyle = new Style(''' flex: 1''' ); static Style _labelStyle = new Style(''' padding: 0 16px; font-family: 'Roboto Medium', 'Helvetica'; color: #212121;''' ); List children; DrawerHeader({ Object key, this.children }) : super(key: key); Node build() { return new Container( style: _style, children: [ new Container( key: 'Spacer', style: _spacerStyle ), new Container( key: 'Label', style: _labelStyle, children: children ) ] ); } }