Code:
        Dim tagCollection = WebBrowser1.Document.GetElementsByTagName("DIV")

        For Each tagfound As HtmlElement In tagCollection

            If tagfound.Children(0).DomElement.className = "control-label" And _
                tagfound.DomElement.className = "control-group" Then
                MsgBox(tagfound.OuterText)
            End If

        Next tagfound