1.how can i edit text like as "You are logged in as: admin" on banner 
2. i created some new zones . but its width is 100% and not changing even if i edit it in default.aspx . 
     <div class="container">
            <div class="eight columns">
                <portal:PortalWebPartZoneTableless HeaderText='<%$ Code: PageResources.Zone_LeftPartZone %>' ID="leftPartZone" runat="server" Width="50%" ChromeTemplateFile="Standard.htm">
                    <ZoneTemplate>
                   
                    </ZoneTemplate>
                </portal:PortalWebPartZoneTableless>
            </div>
            <div class="eight columns">
                <portal:PortalWebPartZoneTableless HeaderText='<%$ Code: PageResources.Zone_RightPartZone %>' ID="rightWebPartZone" runat="server" Width="50%" ChromeTemplateFile="RightColumn.htm" ShowChromeForNonAdmins="true">
                    <ZoneTemplate>
                  
                    </ZoneTemplate>
                </portal:PortalWebPartZoneTableless>
            </div>