Comments: HTML tags for HTML5 tags;
<Meta> attribute Content, name, scheme
<! DOCTYPE>
<A> attributes coords, shape,
<Abbr> attributes
<Address> attribute
<Area> attributes
<Article> attributes
<Aside> attributes
<Audio> attributes
<B> attributes
<Base> attribute
<Bdo> attribute
<Blockquoe> attribute
<Body> attribute
<Br> attributes
<Button> Properties
<Canvas> attributes
<Caption> attribute
<Cite> attribute
<Code> attribute
<Col> attribute
<Colgroup>
<Command>
<Datalist>
<Dd>
<Del>
<Details>
<Dfn>
<Div>
<Dl>
<Dt>
<Em>
<Embed>
<Fieldset>
<Figcaption>
<Fidure>
<Footer>
<Form>
<H1>
<Head>
<Header>
<Hgroup>
<Hr>
<Html>
<I>
<Iframe>
<Input>
<Ins>
<Keygen>
<Kbd>
<Label>
<Legend>
<Li>
<Link>
<Map>
<Mark>
<Menu>
<Meter>
<Nav>
<Noscript>
<Object>
<Ol>
<Optgroup>
<Option>
<Output>
<P>
<Param>
<Pre>
<Progress>
<Q>
<Rp>
<Rt>
<Ruby>
<Samp>
<Script>
<Section>
<Select>
<Small>
<Source>
<Span>
<Strong>
<Style>
<Sub>
<Summary>
<Sup>
<Table>
<Tbody>
<Td>
<Textarea>
<Tfoot>
<Th>
<Thead>
<Time>
<Title>
<Tr>
<Ul>
<Var>
<Video>