disable export and data feed on SSRS tool bar

Using SSRS 2008 standard Edition.
I am trying to disable the data feed and export icons on the SSRS toolbar, as I do not want any one to be able to export/download my report data.

I have my HTMLViewer.css set as follows:
[code]
.ToolbarExport
{
display: none
}
.ToolbarPrint
{
display: none
}

.ToolbarAtomDataFeed
{
display: none
}

[/code]

The rsreportserver.config has the following:
[code]
<Extension Name="ATOM" Type="Microsoft.ReportingServices.Rendering.DataRenderer.AtomDataReport,Microsoft.ReportingServices.DataRendering" Visible="false"/>

[/code]

I still see both the icons active when I load my report.

What else do I need to do?

Is there another way I can disable them?

Thank You.