Add classes to RTE for span/div/p

rte.css

.product{
    color: #00964f;
}
div.product{
    color: #00964f;
}
span.product{
    color: #00964f;
}
p.product{
    color: #00964f;
}

rte.ts

RTE.classes {
    product {
        name = Produkt
        value = color:#9A3811;
    }
}

RTE.default {
    ignoreMainStyleOverride = 1 
    useCSS = 1
    showTagFreeClasses = 1
    contentCSS = EXT:typo3sz_assets/Resources/Public/css/rte.css
    
    buttons {
        blockstyle.tags.div.allowedClasses := addToList(product)
        blockstyle.tags.p.allowedClasses := addToList(product)
        textstyle.tags.span.allowedClasses := addToList(product)
    }

    proc.allowedClasses := addToList(product)
}