# Option: font_size_classes

Comma separated list of class names that is to be used when the user selects font sizes, this option is only used when the convert_fonts_to_spans option is enabled. This list of classes should be 7 items. This option is not used by default, but can be useful if you want to have custom classes for each font size for browser compatiblity.

### Example of usage of the font_size_classes option:

    tinyMCE.init({
        ...
        font_size_classes : "fontSize1,fontSize2,fontSize3,fontSize4,fontSize5,fontSize6,fontSize7"
    });