完全隐藏Master Page Site Actions菜单只有管理员才可以看见

1. 在Master Page Head 增加下面的Style

<style type="text/css">

.ms-cui-tt
{
visibility:hidden;
}

</style>

2.  增加SPSecurityTrimmedControl

<SharePoint:SPRibbonPeripheralContent
    runat="server"
    Location="TabRowLeft"
    CssClass="ms-siteactionscontainer s4-notdlg">

    <SharePoint:SPSecurityTrimmedControl runat='server' PermissionsString='FullMask'>
        <style type="text/css">
       
.ms-cui-tt
{
visibility:visible;
}
}

</style>