<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="utf-8"/>
    <title>Advanced HTML text: Task 2</title>
    <style>
      body {
        background-color: #fff;
        color: #333;
        font: 1em / 1.4 Helvetica Neue, Helvetica, Arial, sans-serif;
        padding: 1em;
        margin: 0;
      }

      h1 {
        font-size: 2rem;
        margin: 0;
        color: purple;
      }

      p {
        margin: 0.5em 0;
      }

      abbr, time {
        color: green;
      }
    </style>
  </head>

  <body>

    <h1>Advanced text semantics</h1>

<p>Let's start with a quote:</p>

<blockquote cite="https://developer.mozilla.org/en-US/docs/Learn/Accessibility">
  <p>By default, 
    <abbr title="Hypertext Markup Language">HTML</abbr> 
    is accessible, if used correctly.
  </p>
</blockquote>

<p><abbr title="Cascading Style Sheets">CSS</abbr>
  can also be used to make web pages more, or less, accessible.
</p>

<p>Chemical Formulae: H<sub>2</sub>O (Water),
  C<sub>2</sub>H<sub>6</sub>O (Ethanol).
</p>

<p>Dates: <time datetime="2019-12-25">December 25<sup>th</sup> 2019
          </time> (Christmas Day),
  <time datetime="2019-11-02">November 2<sup>nd</sup> 2019
  </time> (Día de los Muertos).
</p>

  </body>

</html>
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