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CSS

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HTML 

              
                
<div class="toggles">
  <button type="button" id="logical" aria-pressed="false" onclick="toggle(this.id);flipLogical();">
    Logical
  </button>
</div>

<h1>Block Quote Examples</h1>

<p>
  Used in the blog post <cite><a href="https://adrianroselli.com/2019/11/css-logical-properties.html">CSS Logical Properties</a></cite>.
</p>

<h2>English</h2>

<blockquote class="typical">
  <dl>
    <dt>Bard</dt>
    <dd><q>You two go downstairs and we’ll check up here.</q></dd>
    <dt>(new) Cleric</dt>
    <dd><q>Never split the party.</q></dd>
    <dt>Bard</dt>
    <dd><q>ALWAYS SPLIT THE PARTY! We can get more done.</q></dd>  
  </dl>
  <p>
    [ a statue starts shouting at the party ]
  </p>
  <dl>
    <dt>Bard</dt>
    <dd><q>Or we can all go downstairs.</q></dd>
  </dl>
  <footer>
    <cite>Adrian Roselli (@aardrian) <a href="https://twitter.com/aardrian/status/1167223782588723200">August 29, 2019</a></cite>
  </footer>
</blockquote>

<h2>Urdu</h2>

<p>
  All I did was feed the text strings into Google Translate, add a <code>dir</code> and <code>lang</code>, and walk away.
</p>

<blockquote class="typical" dir="rtl" lang="ur">
  <dl>
    <dt>بارڈ</dt>
    <dd><q>آپ دونوں نیچے چلے جائیں اور ہم یہاں چیک اپ کریں گے۔</q></dd>
    <dt>(نئی) مولوی</dt>
    <dd><q>کبھی پارٹی کو تقسیم نہ کریں۔</q></dd>
    <dt>بارڈ</dt>
    <dd><q>ہمیشہ پارٹی کو الگ! ہم مزید کام کر سکتے ہیں۔</q></dd>  
  </dl>
  <p>
    [ پارٹی میں ایک مجسمہ چیخنے لگا۔ ]
  </p>
  <dl>
    <dt>بارڈ</dt>
    <dd><q>یا ہم سب نیچے کی طرف جا سکتے ہیں۔</q></dd>
  </dl>
  <footer>
    <cite>Adrian Roselli (@aardrian) <a href="https://twitter.com/aardrian/status/1167223782588723200">29 اگست ، 2019۔</a></cite>
  </footer>
</blockquote>

<h2>Japanese</h2>

<p>
  All I did was feed the text strings into Google Translate, add a <code>writing-mode</code> and <code>lang</code>, and walk away.
</p>

<blockquote class="typical" style="writing-mode: vertical-lr" lang="jp">
  <dl>
    <dt>吟遊詩人</dt>
    <dd><q>2階下に行くと、ここでチェックします。</q></dd>
    <dt>(新着) クレリック</dt>
    <dd><q>パーティーを分割しないでください。</q></dd>
    <dt>吟遊詩人</dt>
    <dd><q>常にパーティーを分割します！ さらに多くのことができます。</q></dd>  
  </dl>
  <p>
    [パーティーで彫像が叫び始める]
  </p>
  <dl>
    <dt>吟遊詩人</dt>
    <dd><q>または、私たちはすべて階下に行くことができます。</q></dd>
  </dl>
  <footer>
    <cite>Adrian Roselli (@aardrian) <a href="https://twitter.com/aardrian/status/1167223782588723200">2019年8月29日</a></cite>
  </footer>
</blockquote>

<h2>Chinese</h2>

<p>
  All I did was feed the text strings into Google Translate, add a <code>writing-mode</code> and <code>lang</code>, and walk away.
</p>

<blockquote class="typical" style="writing-mode: vertical-rl" lang="zh">
  <dl>
    <dt>诗人</dt>
    <dd><q>你们两个下楼，我们将在这里查看。</q></dd>
    <dt>(新) 牧师</dt>
    <dd><q>永远不要分开派对。</q></dd>
    <dt>诗人</dt>
    <dd><q>总是分裂党！ 我们可以做得更多。</q></dd>  
  </dl>
  <p>
    [ 一个雕像开始在聚会上大喊大叫 ]
  </p>
  <dl>
    <dt>诗人</dt>
    <dd><q>或者我们都可以下楼了。</q></dd>
  </dl>
  <footer>
    <cite>Adrian Roselli (@aardrian) <a href="https://twitter.com/aardrian/status/1167223782588723200">2019年8月29日</a></cite>
  </footer>
</blockquote>

<p>
  Used in the blog post <cite><a href="https://adrianroselli.com/">CSS Logical Properties</a></cite>.
</p>
!

CSS 

              
                body {
  background-color: #fff;
  color: #333;
  margin: 5em 2em 5em 2em;
  font-family: "Segoe UI", -apple-system, BlinkMacSystemFont, Roboto,
    Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
  line-height: 1.5;
/*     line-height: 1.5; */
/*     letter-spacing: 0.12em; */
/*     word-spacing: 0.16em; */
/*     font-size: 200%; */
}

code {
  font-family: "Lucida Console", monospace;
  color: #060;
}




blockquote {
/*  very much breaking the rules here,  */
/*  so this will not work at all  */
/*  https://drafts.csswg.org/css-logical/#logical-shorthand-keyword  */
  background-image: logical radial-gradient(circle at block-start inline-start, #ff0 0, #fff 50%);  
}

blockquote dt {
  font-weight: bold;
}

blockquote p {
  font-style: italic;
  text-align: center;
}

blockquote dt::after {
  content: ":";
}

blockquote cite::before {
  content: "— ";
}

/* Styles we use today */

blockquote.typical {
  max-width: 27em;
  margin: 2em auto;
  border-top: .2em solid #ccc;
  border-left: .2em solid #ccc;
  border-top-left-radius: 2em;
  padding-top: .5em;
}

blockquote.typical > *:not(footer) {
  margin: .5em 1em;
}

blockquote.typical footer {
  text-align: right;
  margin-top: 1.5em;
  border-top: .05em solid #ccc;
  padding-top: 1em;
  padding-right: 1em;
}

blockquote.typical p {
  margin: 1em auto;
}

blockquote.typical dt {
  margin-top: .5em;
}

blockquote.typical dd {
  margin-left: 1em;
}

/* New logical styles */

blockquote.logical {
  max-inline-size: 27em;
  margin-block: 2em;
  margin-inline: auto;
  border-block-start: .2em solid #ccc;
  border-inline-start: .2em solid #ccc;
  border-start-start-radius: 2em;
  padding-block-start: .5em;
}

blockquote.logical > *:not(footer) {
  margin-block: .5em;
  margin-inline: 1em;
}

blockquote.logical footer {
  text-align: end;
  margin-block-start: 1.5em;
  border-block-start: .05em solid #ccc;
  padding-block-start: 1em;
  padding-inline-end: 1em;
}

blockquote.logical p {
  margin-block: 1em;
  margin-inline: auto;
}

blockquote.logical dt {
  margin-block-start: .5em;
}

blockquote.logical dd {
  margin-inline-start: 1em;
}


/* Toggle */
/* https://adrianroselli.com/2019/08/under-engineered-toggles-too.html */

.toggles {
  margin: 0;
  padding: .5em 2em;
  border-bottom: .1em solid #ccc;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background-color: #fff;
}

.toggles [aria-pressed] {
  display: block;
  box-sizing: border-box;
  border: none;
  color: inherit;
  background: none;
  font: inherit;
  line-height: inherit;
  text-align: left;
  padding: .4em 0 .4em 4em;
  position: relative;
}

.toggles [aria-pressed][disabled],
.toggles [aria-pressed][disabled]:hover {
  color: #999;
}

.toggles [aria-pressed]:focus,
.toggles [aria-pressed]:hover {
  color: #00f;
  outline: none;
}

.toggles [aria-pressed]:focus::before,
.toggles [aria-pressed]:hover::before {
  box-shadow: 0 0 0.5em #333;
}

.toggles [aria-pressed]:focus::after,
.toggles [aria-pressed]:hover::after {
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 100 100' xmlns='http://www.w3.org/2000/svg'%3E%3Ccircle cx='50' cy='50' r='50' fill='rgba(0,0,0,.25)'/%3E%3C/svg%3E");
  background-size: 30%;
  background-repeat: no-repeat;
  background-position: center center;
}

.toggles [aria-pressed]::before,
.toggles [aria-pressed]::after {
  content: "";
  position: absolute;
  height: 1.5em;
  transition: all 0.25s ease;
}

.toggles [aria-pressed]::before {
  left: 0;
  top: 0.2em;
  width: 3em;
  border: 0.2em solid #767676;
  background: #767676;
  border-radius: 1.1em;
}

.toggles [aria-pressed]::after {
  left: 0;
  top: 0.25em;
  background-color: #fff;
  background-position: center center;
  border-radius: 50%;
  width: 1.5em;
  border: 0.15em solid #767676;
}

.toggles [aria-pressed=true]::after {
  left: 1.6em;
  border-color: #36a829;
  color: #36a829;
}

.toggles [aria-pressed=true]::before {
  background-color: #36a829;
  border-color: #36a829;
}

.toggles [aria-pressed][disabled]::before {
  background-color: transparent;
  border-color: #ddd;
}

.toggles [aria-pressed][disabled]::after {
  border-color: #ddd;
}

.toggles [aria-pressed][disabled]:hover {
  color: #999; /* case for CSS custom property if not supporting IE/Edge */
}

.toggles [aria-pressed][disabled]:hover::before {
  box-shadow: none;
}

.toggles [aria-pressed][disabled]:hover::after {
  background-image: none;
}

/* Put toggles on the right like the iOS the kids like */

.toggles.flip [aria-pressed]::before,
.toggles.flip [aria-pressed]::after {
  left: auto;
  right: 0;
}

.toggles.flip [aria-pressed]::after {
  left: auto;
  right: 1.6em;
}

.toggles.flip [aria-pressed=true]::after {
  right: 0;
}

.toggles.flip [aria-pressed] {
  padding-left: 0;
  padding-right: 4em;
}

/* Windows High Contrast Mode Support */
@media screen and (-ms-high-contrast: active) {
  .toggles [aria-pressed]:focus::before,
  .toggles [aria-pressed]:hover::before {
    outline: 1px dotted windowText;
    outline-offset: 0.25em;
  }
  .toggles [aria-pressed]::after {
    background-color: windowText;
  }
  .toggles [aria-pressed][disabled]::after {
    background-color: transparent;
  }
}

/* Reduced motion */
@media screen and (prefers-reduced-motion: reduce) {
  .toggles [aria-pressed]::before,
  .toggles [aria-pressed]::after {
    transition: none;
  }
}

/* Dark mode */
@media screen and (prefers-color-scheme: dark) {
  .toggles {
    color: #fff;
    background-color: #101010;
  }
  fieldset.toggles {
    border: 0.1em solid rgba(255, 255, 255, 0.15);
  }
  .toggles [aria-pressed]:focus,
  .toggles [aria-pressed]:hover {
    color: #99f;
  }
  .toggles [aria-pressed]::before {
    border-color: #808080;
    background: #808080;
  }
  .toggles [aria-pressed]::after {
    background-color: #101010;
  }
  .toggles [aria-pressed]:focus::after,
  .toggles [aria-pressed]:hover::after {
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 100 100' xmlns='http://www.w3.org/2000/svg'%3E%3Ccircle cx='50' cy='50' r='50' fill='rgba(255,255,255,.25)'/%3E%3C/svg%3E");
  }
  .toggles [aria-pressed][disabled]::before,
  .toggles [aria-pressed][disabled]::after {
    border-color: #555;
  }
}

/* RTL */
/* https://twitter.com/dror3go/status/1102946375396982784 */
*[dir="rtl"] .toggles [aria-pressed] {
  padding-left: 0;
  padding-right: 4em;
}

*[dir="rtl"] .toggles [aria-pressed]::before,
*[dir="rtl"] .toggles [aria-pressed]::after {
  left: auto;
  right: 0;
}

*[dir="rtl"] .toggles [aria-pressed]::after {
  right: 0;
}

*[dir="rtl"] .toggles [aria-pressed=true]::after {
  right: 1.6em;
}

/* Put toggles on the right like the iOS the kids like */

*[dir="rtl"] .toggles.flip [aria-pressed]::before,
*[dir="rtl"] .toggles.flip [aria-pressed]::after {
  left: 0;
  right: auto;
}

*[dir="rtl"] .toggles.flip [aria-pressed]::after {
  right: auto;
  left: 1.6em;
}

*[dir="rtl"] .toggles.flip [aria-pressed=true]::after {
  left: 0;
}

*[dir="rtl"] .toggles.flip [aria-pressed] {
  padding-right: 0;
  padding-left: 4em;
}
!

JS 

              
                function toggle(btnID) {
  var theButton = document.getElementById(btnID);
  if (theButton.getAttribute("aria-pressed") == "false") {
    theButton.setAttribute("aria-pressed", "true");
  } else {
    theButton.setAttribute("aria-pressed", "false");
  }
}

function flipLogical() {
  var theQuote = document.getElementsByTagName("blockquote");
  for (var i = 0; i < theQuote.length; i++) {
    if (theQuote[i].getAttribute("class") == "typical") {
      theQuote[i].setAttribute("class", "logical");
    } else {
      theQuote[i].setAttribute("class", "typical");
    }
  }
}
!
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