= Sidebar Styles :navtitle: Sidebars This page describes the in-page sidebar block styles, not the styles for the navigation sidebar. == Sidebar blocks xref:antora:asciidoc:sidebar.adoc[Sidebars] can contain any type of content. The sidebar title is specified by the block class title. Here's an AsciiDoc source example that produces a sidebar with a title: [source,asciidoc] ---- .Optional Title **** This is a paragraph in a sidebar. **** ---- [source,html] ---- <div class="sidebarblock"> <div class="content"> <div class="title">Optional Title</div> <div class="paragraph"> <p>This is a paragraph in a sidebar.</p> </div> </div> </div> ----