HTML Standard 4.3 Sections 4.3.1 The body element 4.3.2 The article element 4.3.3 The section element 4.3.4 The nav element 4.3.5 The aside element 4.3.6 The h1 h2 h3 h4 h5 , and h6 elements 4.3.7 The hgroup element 4.3.8 The header element 4.3.9 The footer element 4.3.10 The add…