bodyClass.ftl

<#function bodyClass>
<#local
    uri = page.request.getRequestURI(),
    uri = uri?replace("/", "", "f"),
    parts = uri?split("/"),
    classes = "page"
/>
<#if uri == "/">
    <#local classes = classes + " page-index" />
</#if>

<#list parts as part>
    <#local substr = "" />
    <#list parts[0..part_index] as str>
        <#local substr = substr + "-" + str />
    </#list>
    <#local classes = classes + " page" + substr />
</#list>

<#return classes>
</#function>