2.2 Notations

• Some common HTML tags can be used directly without tags$, such as p, h1, div, span, etc.

• Less common HTML tags require using tags$, such as tags$nav.

• Get rid of tags$ using withTags():

  withTags(
    nav(
      div(),
      ul(
        li(),
        li()
      )
    )
  )

  <nav>
    <div></div>
    <ul>
      <li></li>
      <li></li>
    </ul>
  </nav>

• Use tagList() to gather multiple HTML elements together, instead of list(), because a special class is added (shiny.tag.list), which allows for extra capabilities, such as printing as HTML content:

  tagList(
    p("Paragraph"),
    p("Sibling of the previous paragraph")
  )

  <p>Paragraph</p>
  <p>Sibling of the previous paragraph</p>