1. duplicate the styles already used for the particular module, adding a suffix to each style name. this will definitely include some of the following;

1. .module {}
2. div.moduletable {}
3. div.moduletable h3 {}
4. table.moduletable {}/li>
5. table.moduletable th
6. table.moduletable td

and can include other styles used on the content in that section, such as;

1. ol, ul, li {}
2. a:link,a:visited,a:hover {}
3. a.readon:link,a.readon:visited,a.readon:hover {}

and others, note that certain modules already may have specific css styles associated with them (such as latestnews & mostread lists) so if you are modifying one of these modules, you might need to either remove the specific style so the module class suffix style can be applied, or just change those specific styles.

example from "freemambo template"

table.moduletable { float: left; padding: 0px; margin: 0px; width: 152px; background: url(../images/leftright.gif); } table.moduletable th { background: url(../images/subhead_bg.gif); font-size: 10px; text-align: center !important; text-align:center; padding-top: 4px; padding-left: 0px; height: 23px; text-decoration: none; width: 154px !important; width:152px; color:#FFFFFF; text-transform:uppercase; } table.moduletable td { font-size: 11px; padding-left: 5px; padding-right: 2px; font-weight: normal; color:#000000; }

no module suffix screenshot

2 .make changes to these styles as desired.

example of changes to "freemambo template" - adding suffix eg

table.moduletableeg { float: left; padding: 0px; margin: 0px; width: 152px; } table.moduletableeg th { background-color: #FF9900; color: #333333; font-size: 12px; text-align: center !important; text-align:center; padding-top: 2px; padding-left: 0px; height: 23px; text-decoration: none; width: 154px !important; width:152px; text-transform:lowercase; } table.moduletableeg td { background-color: #EEEEEE; font-size: 11px; padding-left: 5px; padding-right: 2px; font-weight: normal; color:#FF0000; }

eg module suffix screenshot

3. update the module class suffix within joomla administrator.

1. go to 'Modules' -> 'Site Modules'
2. click on the module you'd like to apply the new css styles to
3. enter the suffix you used in the module class suffix field & click 'Save'

site module - edit screenshot