RH-generated WebHelp doesn't display some CSS styles

I've worked with RH for a while, including creating other WebHelp projects in RH that have been deployed without any problem. On my current RH9 project, however, some of the CSS styles are not being applied after the project output is moved to a network directory. When I open the project output on my Desktop, the styles all render correctly.

The styles in question aren't especially unusual:

DIV.text {

          width: 640px;

          padding-left: 25px;

          padding-right: 25px;

          padding-bottom: 25px;

          margin-left: auto;

          margin-right: auto;

          background-color: #EDEBDE;

}

P.footer {

          text-align: center;

          font-size: 8pt;

          line-height: 25%;

          color: #A13619;

}

The kicker is that some of the styles ARE being applied (e.g., background image), while the 2 styles above are NOT being applied.

Some of the things I've already tried include:

- creating a new copy of the CSS file

- making sure the correct stylesheet is referenced in the HTML files

- making sure the correct stylesheet is referenced in the MasterPage

- making sure the correct CSS type is specified in the HTML files

- adding "!important" to the styles that aren't being applied

Has anyone seen / resolved issues like this before?

Thanks!