Files effecting the font size in ITS

Hi Friends

Our existing ESS setup is on workplace 2.11 & with ITS 4.6D, we're migrating our ESS application to EP 6.0 & standalone ITS 6.20. We copied our ESS transactions templates(like PZ02/PZ09 etc) from the existing 4.6 D ITS to the new 6.20 ITS, all our ESS transactions are working fine with portal except for the issue that the font size is much bigger then what the users are used to currently.

We understand from customer that the earlier team who configured ITS 4.6D modified some ITS files to make the fonts small so we also copied the following 4 files from the 4.6D ITS to the new 6.20 ITS & restarted the ITS & web server. Despite this the size of our fonts haven't reduced while displaying the ESS transactions within Portal.

<link REL="stylesheet" HREF="/sap/its/mimes/webgui/wa/webgui/style/generator.css" TYPE="text/css">

<link REL="stylesheet" HREF="/sap/its/mimes/webgui/wa/webgui/style/msiexplorer/d_generator.css" TYPE="text/css">

<link REL="stylesheet" HREF="/sap/its/mimes/webgui/wa/scrindp/style/screenindependent.css" TYPE="text/css">

<link REL="stylesheet" HREF="/sap/its/mimes/webgui/wa/scrindp/style/msiexplorer/screenindependent.css" TYPE="text/css">

1. Can somebody advice if the font size is controlled by some other files as well with-in the ITS, if yes what's the names of these files?.

2. Do we need to do something at the portal server instead of ITS to solve this issue?. Can the font size be controlled from the portal instead of ITS?

Thanks & Rgds,

Abhishek