Hello

Would option would be to a unique module class suffix to each. For example add the following to the 'Module Class Suffix' field of your first module...

first-module

You can then style the header of this module by adding the following to the Custom CSS field of your templates parameters (edit to taste)...

.first-module .module_header h3 {

    color: red;

} 

Repeat for each module.

Ciarán

this dont work....

Hello

You appear to have the class in the wrong field. Place it in the 'Suffixe de classe CSS' field (replacing '_menu').

Ciarán