RTE {
    default {
        buttons {
            formatblock {
                items {
                    h1 {
                        label = LLL:EXT:wv_site/Resources/Private/Language/Backend.xlf:content_element.header.header_layout.1
                    }

                    h2 {
                        label = LLL:EXT:wv_site/Resources/Private/Language/Backend.xlf:content_element.header.header_layout.2
                    }

                    h3 {
                        label = LLL:EXT:wv_site/Resources/Private/Language/Backend.xlf:content_element.header.header_layout.3
                    }
                }
            }
        }

        contentCSS {
            file1 = EXT:wv_site/Resources/Public/Stylesheets/rte.css
        }

        FE < RTE.default
        FE.FE >
    }
}