Glasspanel (Transparent panel about another panel)

Hi, I am searching for a Glasspanel.

For example, I have a splitpanel and the leftside I will make it 0.6 opacity transparent, so the components under them shines through but could not pressed). The right side I can work normal. How I do this?

I read this post. https://vaadin.com/forum#!/thread/73203

Have someone an example, how I can do this?

I have solved itself

How did you solve it?

Here my test code for a splitpanel

        HorizontalSplitPanel splitLayoutPanel = new HorizontalSplitPanel();
        VerticalLayout topLayout = new VerticalLayout();
        VerticalLayout contentLayout = new VerticalLayout();
        VerticalLayout mainLayout = new VerticalLayout();
        mainLayout.setWidth("100%");
        mainLayout.setHeight("100%");
        mainLayout.addComponent(topLayout);
        mainLayout.addComponent(contentLayout);
        topLayout.addComponent(new Label("mytest"));
        contentLayout.addComponent(new Button("Test"));
        contentLayout.setWidth("100%");
        contentLayout.setHeight("100%");
        mainLayout.setExpandRatio(contentLayout, 1.0f);

        AbsoluteLayout absoluteLayout = new AbsoluteLayout();
        absoluteLayout.addComponent(mainLayout, "left: 0px; top: 0px;");
        VerticalLayout glassPanelLayout = new VerticalLayout();
        glassPanelLayout.setWidth("100%");
        glassPanelLayout.setHeight("100%");
        glassPanelLayout.addStyleName("glasspanel-position");
        absoluteLayout.addComponent(glassPanelLayout, "left: 0px; top: 0px;");
        splitLayoutPanel.setFirstComponent(absoluteLayout);
        splitLayoutPanel.setSizeFull();
        VerticalLayout vRight = new VerticalLayout();
        vRight.setWidth("100%");
        vRight.setHeight("100%");
        splitLayoutPanel.setSplitPosition(300, Unit.PIXELS);
        Label titleContent = new Label("Hallo2");
        vRight.addComponent(titleContent);
        vRight.setComponentAlignment(titleContent, Alignment.TOP_CENTER);
        splitLayoutPanel.setSecondComponent(vRight);
        setContent(splitLayoutPanel);

Here the css

.glasspanel-position
{
       height: 100%;
       width:100%;
      z-index: 100;
     background-color: rgba(0,0,0,0.7);
}