expand_less <body class="d-flex flex-column h-100"> <body class="right-sidebar thin-sidebar d-flex flex-column h-100"> <header>{{*header|core}}</header> <article class="container flex-shrink-0" role="main"> {{_main|content}} </article> <aside>{{*sidebar|content}}</aside> <footer class="footer mt-auto py-3">{{*footer|content}}{{*footer|core}}</footer> </body>