An example is a "pull quote" from a longer article. Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Like the other answers say, it's a semantic enhancement that is similarly named but unrelated to a sidebar/sidenav. 1 new item. A CSS only responsive fixed sidebar navigation that collapses into a bottom nav bar on mobile devices. Adding a sidebar in HTML5 and responsive templates is done using a div and css float code. Description # Description. See Also… Check your version of HTML front matter:--- layout: article title: Page - Sidebar aside: toc: true sidebar: nav: layouts --- Header 1 Header 1.1 Header 1.2 Header 2 Header 2.1 Header 3. Collapsible Sidebar Using Bootstrap 4. Learn Development at Frontend Masters. NEXT Article Header Overlay Background Fill the means to show or hide sections by clicking links beside their headings. The