For 3270 Hosts (IBM Mainframe) enter the name of the stylesheet file (.css extension) to be used as the default stylesheet for new emulation users.
If you have configured your cssx keys to provide a selection of stylesheets, the value of TN3270CSS should match the CfgName of one of the stylesheets you have defined.
If this setting is missing, the termCSS setting will be used for 3270.
