Display drawer

[mouni]

import QtQuick 2.7
import QtQuick.Controls 2.0
import QtQuick.Layouts 1.0
import QtQuick 2.6
import QtQuick.Layouts 1.3
import QtQuick.Controls 2.0
import QtQuick.Controls.Material 2.0
import QtQuick.Controls.Universal 2.0
import Qt.labs.settings 1.0
import QtQuick.Dialogs 1.1
 
ApplicationWindow {
    id: window
    visible: true
 
 
    Drawer {
        id:drawer
 
        width: window.width * 0.6
        height: window.height - header.height
 
 
    }
    header: ToolBar
    {
    ToolButton
    {
        text:"Home"
        onClicked:
 
            drawer.open()
    }
}
 
}

import QtQuick 2.7
import QtQuick.Controls 2.0
import QtQuick.Layouts 1.0
import QtQuick 2.6
import QtQuick.Layouts 1.3
import QtQuick.Controls 2.0
import QtQuick.Controls.Material 2.0
import QtQuick.Controls.Universal 2.0
import Qt.labs.settings 1.0
import QtQuick.Dialogs 1.1

ApplicationWindow {
    id: window
    visible: true


    Drawer {
        id:drawer
       
        width: window.width * 0.6
        height: window.height - header.height


    }
    header: ToolBar
    {
    ToolButton
    {
        text:"Home"
        onClicked:

            drawer.open()
    }
}

}

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Drawer is remove toolbar height on upside but it is removing down can anybody help to move down