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Here you can Sed posuere consectetur est at lobortis. Donec ullamcorper nulla non metus auctor fringilla. Maecenas sed diam eget risus varius blandit sit amet non magna. Donec id elit non mi porta gravida at eget metus. Praesent commodo cursus magna, vel scelerisque nisl consectetur et.

            
                  <div id="accessibility-prefs" class="accessibility-prefs">
      <a href="#" id="toggle-dark" class="toggle-dark button">Dark Mode</a>
      <a href="#" id="toggle-dark-reset" class="toggle-dark-reset button">Reset Preference</a>
    </div>


<div class="container">

  <h1>It was a dark and stormy night</h1>

  <p>Tell me, O muse, of that ingenious hero who travelled far and wide after he had sacked the famous town of Troy. Many cities did he visit, and many were the nations with whose manners and customs he was acquainted; moreover he suffered much by sea while trying to save his own life and bring his men safely home; but do what he might he could not save his men, for they perished through their own sheer folly in eating the cattle of the Sun-god Hyperion; so the god prevented them from ever reaching home. Tell me, too, about all these things, O daughter of Jove, from whatsoever source you may know them. 
  </p>
  

</div>
            
          
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              /* IBM Plex Sans Variable Font */
@font-face {
  font-family: "Roboto Delta VF";
  src: url("https://s3-us-west-2.amazonaws.com/s.cdpn.io/57225/RobotoDelta_v2-VF.woff2")
    format("woff2-variations");
  font-weight: 100 900;
  font-stretch: 75% 100%;
  font-style: normal;
  font-display: swap;
}

:root {
  --text-size: 1.25rem;
  --text-vf-wght: 400;  
  --text-vf-wdth: 100;
  --text-vf-GRAD: 0;

  --color-dark: #3a3a3a;
  --color-light: #eee;
  
  --color-text: var(--color-dark);
  --color-background: var(--color-light);
  
  /* variable used to store user preference */
  --user-color-pref: 'unset';
}

body {
  background-color: var(--color-background);
  color: var(--color-text);
  transition: background-color 0.25s ease, color 0.25s ease;
}
.container {
  margin-left: auto;
  margin-right: auto;
  max-width: 95vw;
  width: 45em;
}

p {
  font-family: "Roboto Delta VF", Arial, sans-serif;
  font-size: var(--text-size);
  font-stretch: calc( var(--text-vf-wdth) * 1% );
  font-weight: var(--text-vf-wght);
  font-variation-settings: 'GRAD' var(--text-vf-GRAD);
}

h1 {
  font-family: "Roboto Delta VF", Arial, sans-serif;
  font-size: calc(var(--text-size) * 2.75);
  font-stretch: 75%;
  /* set font-weight as a multiple of body weight so they scale together */
  font-weight: calc(var(--text-vf-wght) * 1.75);
  font-variation-settings: 'GRAD' var(--text-vf-GRAD);
}

@media (prefers-color-scheme:dark) {
  :root {
    /* flip the light and dark variables */
    --color-text: var(--color-light);
    --color-background: var(--color-dark);
    --text-vf-GRAD: 0.25;
  }
  p, 
  .dark p {
    letter-spacing: 0.0125em;
  }
  .dark {
      /* flip the light and dark variables */
      --color-text: var(--color-light);
      --color-background: var(--color-dark);
  }
  .light {
    /* flip the light and dark variables */
    --color-text: var(--color-dark);
    --color-background: var(--color-light);
  }
  p, 
  .dark p {
    letter-spacing: 0.0125em;
  }
  .light p {
    --text-vf-GRAD: 0;
    letter-spacing: auto;
  }
}

.dark {
  /* flip the light and dark variables */
  --color-text: var(--color-light);
  --color-background: var(--color-dark);
  --text-vf-GRAD: 0.25;
}
.light {
  /* flip the light and dark variables */
  --color-text: var(--color-dark);
  --color-background: var(--color-light);
  letter-spacing: auto;
}
.dark p {
  letter-spacing: 0.0125em;
}
.light p {
  letter-spacing: auto;
}



/* Control buttons */
 
.button {
  background-color: var(--color-text);
  border: solid 1px var(--color-text);
  border-radius: 0.15em;
  color: var(--color-background);
  display: inline-block;
  font-family: "Roboto Delta VF", Arial, sans-serif;
  padding: 0.2em 0.25em 0.15em;
  text-decoration: none; 
}

.toggle-dark {
  min-width: 9em;
}
.toggle-dark:after {
  content: ': default';
}
.toggle-dark.on:after {
  content: ': dark';
}
.toggle-dark.off:after {
  content: ': light';
}

            
          
!
            
              

/* Light mode toggle */
if (!'classList' in document.createElement('span')) {
  document.getElementById('c-unsupported').classList.remove('hidden');
  document.getElementById('execute').setAttribute('disabled', 'disabled');
} else {
  if (document.getElementById('toggle-dark')) {
    document.getElementById('toggle-dark').addEventListener('click', function(e) {
      /* If the Dark Mode preference is 'on', save preference, 
      update classes and set sessionStorage preference */
      if (document.getElementById('toggle-dark').classList.contains('on')) {
        document.documentElement.classList.remove('dark');
        document.documentElement.classList.add('light');
        document.getElementById('toggle-dark').classList.remove('on');
        document.getElementById('toggle-dark').classList.add('off');
        /* save user preference for this session */
        sessionStorage.prefersColorScheme = 'light';
      } else {
        /* If the Dark Mode preference is 'off', save preference, 
        update classes and set sessionStorage preference */
        document.documentElement.classList.add('dark');
        document.documentElement.classList.remove('light');
        document.getElementById('toggle-dark').classList.add('on');
        document.getElementById('toggle-dark').classList.remove('off');
        /* save user preference for this session */
        sessionStorage.prefersColorScheme = 'dark';
      }
      e.preventDefault();
    });
  }
  /* If the Rese Preference is clicked, reset preference variable, 
  remove classes and leave in default state */
  if (document.getElementById('toggle-dark-reset')) {
    document.getElementById('toggle-dark-reset').addEventListener('click', function(e) {
      document.documentElement.classList.remove('dark');
      document.documentElement.classList.remove('light');
      document.getElementById('toggle-dark').classList.remove('on');
      document.getElementById('toggle-dark').classList.remove('off');
      sessionStorage.prefersColorScheme = 'unset';
      e.preventDefault();

    });
                                                            
  }

}

/* On load, check for the session variable and set UI variables
accordingly */
window.onload = function() {
  if (sessionStorage.prefersColorScheme == 'dark' ) {
    document.documentElement.classList.add("dark");
    document.documentElement.classList.remove("light");
    document.getElementById('toggle-dark').classList.add('on');
  }
  if (sessionStorage.prefersColorScheme == 'light' ) {
    document.documentElement.classList.add("light");
    document.documentElement.classList.remove("dark");
    document.getElementById('toggle-dark').classList.add('off');
  }
};


            
          
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