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HTML

              
                <h1>Playing with CSS Logical Properties Support</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>

<p>
  The default state is in bold because it is easier to spot once the layout has gone out of order from what you expect.
</p>

<fieldset>
  <legend>Change the <code>body</code> to…</legend>
  <label>
    <input type="radio" name="bodyStyle" value="" onclick="styleBody(this.value);" checked>
    <strong>Use default <code>writing-mode</code> and <code>direction</code>.</strong>
  </label>
  <label>
    <input type="radio" name="bodyStyle" value="writing-mode: vertical-lr;" onclick="styleBody(this.value);">
    Set <code>writing-mode: vertical-lr</code>.
  </label>
  <label>
    <input type="radio" name="bodyStyle" value="direction: rtl;" onclick="styleBody(this.value);">
    Set <code>direction: rtl</code>.
  </label>
  <label>
    <input type="radio" name="bodyStyle" value="writing-mode: vertical-rl;" onclick="styleBody(this.value);">
    Set <code>writing-mode: vertical-rl</code>.
  </label>
</fieldset>

<p>
  I am using <code>&lt;button&gt;</code> as my examples because they already have borders, inline-block layout, and get focus natively in case you (like me) tab through a page and sometimes set focus to a thing to keep track where you are.
</p>

<h2>Sizing and Text Alignment</h2>

<p>
  These styles are carried forward for all the buttons after these first two, unless you see them explicitly overridden.
</p>

<div>
  <button type="button" class="typical">
    Traditional:<br>
    <code>min-width: 5em;<br>
      min-height: 2em;<br>
      text-align: left;<br>
      padding: .5em 1em;</code>
  </button>

  <button type="button" class="logical">
    Logical:<br>
    <code>min-inline-size: 5em;<br>
      min-block-size: 2em;<br>
      text-align: start;<br>
      padding-block: .5em;<br>
      padding-inline: 1em;</code>
  </button>
</div>

<h2>Borders</h2>

<p>
  Headings reflect the original property names, which should be easier for referencing the new property names.
</p>

<h3 class="BorderTop">Border Top</h3>

<div>
  <button type="button" class="typical">
    Traditional:<br>
    <code>border-top: .3em double #00f;</code>
  </button>

  <button type="button" class="logical">
    Logical:<br>
    <code>border-block-start: .3em double #00f;</code>
  </button>
</div>

<h3 class="BorderRight">Border Right</h3>

<div>
  <button type="button" class="typical">
    Traditional:<br>
    <code>border-right: .5em dotted #0c0;</code>
  </button>

  <button type="button" class="logical">
    Logical:<br>
    <code>border-inline-end: .5em dotted #0c0;</code>
  </button>
</div>

<h3 class="BorderBottom">Border Bottom</h3>

<div>
  <button type="button" class="typical">
    Traditional:<br>
    <code>border-bottom: .2em solid #c00;</code>
  </button>

  <button type="button" class="logical">
    Logical:<br>
    <code>border-block-end: .2em solid #c00;</code>
  </button>
</div>

<h3 class="BorderLeft">Border Left</h3>

<div>
  <button type="button" class="typical">
    Traditional:<br>
    <code>border-left: .3em dashed #333;</code>
  </button>

  <button type="button" class="logical">
    Logical:<br>
    <code>border-inline-start: .3em dashed #333;</code>
  </button>
</div>

<h3 class="BorderTop BorderRight BorderBottom BorderLeft">All the Borders</h3>

<div>
  <button type="button" class="typical">
    Traditional
  </button>

  <button type="button" class="logical">
    Logical
  </button>
</div>

<h3 class="BorderBlock">Border Block</h3>

<div>
  <button type="button" class="typical">
    Traditional:<br>
    <code>border-top: .3em solid #000;<br>
    border-bottom: .3em solid #000;</code>
  </button>

  <button type="button" class="logical">
    Logical:<br>
    <code>border-block: .3em solid #000;</code>
  </button>
</div>

<h3 class="BorderInline">Border Inline</h3>

<div>
  <button type="button" class="typical">
    Traditional:<br>
    <code>border-left: .3em solid #000;<br>
    border-right: .3em solid #000;</code>
  </button>

  <button type="button" class="logical">
    Logical:<br>
    <code>border-inline: .3em solid #000;</code>
  </button>
</div>



<h2 class="Radii">Border Radius</h2>

<p>
  Headings reflect the original property names, which should be easier for referencing the new property names.
</p>

<h3 class="BorderTopLeftRadius">Border Top Left Radius</h3>

<div>
  <button type="button" class="typical">
    Traditional:<br>
    <code>border-top-left-radius: .75em;</code>
  </button>

  <button type="button" class="logical">
    Logical:<br>
    <code>border-start-start-radius: .75em;</code>
  </button>
</div>

<h3 class="BorderTopRightRadius">Border Top Right Radius</h3>

<div>
  <button type="button" class="typical">
    Traditional:<br>
    <code>border-top-right-radius: 1.5em;</code>
  </button>

  <button type="button" class="logical">
    Logical:<br>
    <code>border-start-end-radius: 1.5em;</code>
  </button>
</div>

<h3 class="BorderBottomRightRadius">Border Bottom Right Radius</h3>

<div>
  <button type="button" class="typical">
    Traditional:<br>
    <code>border-bottom-right-radius: .75em;</code>
  </button>

  <button type="button" class="logical">
    Logical:<br>
    <code>border-end-end-radius: .75em;</code>
  </button>
</div>

<h3 class="BorderBottomLeftRadius">Border Bottom Left Radius</h3>

<div>
  <button type="button" class="typical">
    Traditional:<br>
    <code>border-bottom-left-radius: 1.5em;</code>
  </button>

  <button type="button" class="logical">
    Logical:<br>
    <code>border-end-start-radius: 1.5em;</code>
  </button>
</div>

<h3 class="BorderTopLeftRadius BorderTopRightRadius BorderBottomRightRadius BorderBottomLeftRadius">All the Border Radii</h3>

<div>
  <button type="button" class="typical">
    Traditional
  </button>

  <button type="button" class="logical">
    Logical
  </button>
</div>


<h2>Padding</h2>

<p>
  Headings reflect the original property names, which should be easier for referencing the new property names.
</p>

<h3 class="PaddingTop">Padding Top</h3>

<div>
  <button type="button" class="typical">
    Traditional:<br>
    <code>padding-top: 2em;</code>
  </button>

  <button type="button" class="logical">
    Logical:<br>
    <code>padding-block-start: 2em;</code>
  </button>
</div>

<h3 class="PaddingRight">Padding Right</h3>

<div>
  <button type="button" class="typical">
    Traditional:<br>
    <code>padding-right: 2em;</code>
  </button>

  <button type="button" class="logical">
    Logical:<br>
    <code>padding-inline-end: 2em;</code>
  </button>
</div>

<h3 class="PaddingBottom">Padding Bottom</h3>

<div>
  <button type="button" class="typical">
    Traditional:<br>
    <code>padding-bottom: 2em;</code>
  </button>

  <button type="button" class="logical">
    Logical:<br>
    <code>padding-block-end: 2em;</code>
  </button>
</div>

<h3 class="PaddingLeft">Padding Left</h3>

<div>
  <button type="button" class="typical">
    Traditional:<br>
    <code>padding-left: 2em;</code>
  </button>

  <button type="button" class="logical">
    Logical:<br>
    <code>padding-inline-start: 2em;</code>
  </button>
</div>

<h3 class="PaddingBlock">Padding Block</h3>

<div>
  <button type="button" class="typical">
    Traditional:<br>
    <code>padding: 2em 0;</code>
  </button>

  <button type="button" class="logical">
    Logical:<br>
    <code>padding-block: 2em;</code>
  </button>
</div>

<h3 class="PaddingInline">Padding Inline</h3>

<div>
  <button type="button" class="typical">
    Traditional:<br>
    <code>padding: 0 2em;</code>
  </button>

  <button type="button" class="logical">
    Logical:<br>
    <code>padding-inline: 2em;</code>
  </button>
</div>




<h2>Margin</h2>

<p>
  Headings reflect the original property names, which should be easier for referencing the new property names.
</p>

<h3 class="MarginTop">Margin Top</h3>

<div>
  <button type="button" class="typical">
    Traditional:<br>
    <code>margin-top: 2em;</code>
  </button>

  <button type="button" class="logical">
    Logical:<br>
    <code>margin-block-start: 2em;</code>
  </button>
</div>

<h3 class="MarginRight">Margin Right</h3>

<div>
  <button type="button" class="typical">
    Traditional:<br>
    <code>margin-right: 2em;</code>
  </button>

  <button type="button" class="logical">
    Logical:<br>
    <code>margin-inline-end: 2em;</code>
  </button>
</div>

<h3 class="MarginBottom">Margin Bottom</h3>

<div>
  <button type="button" class="typical">
    Traditional:<br>
    <code>margin-bottom: 2em;</code>
  </button>

  <button type="button" class="logical">
    Logical:<br>
    <code>margin-block-end: 2em;</code>
  </button>
</div>

<h3 class="MarginLeft">Margin Left</h3>

<div>
  <button type="button" class="typical">
    Traditional:<br>
    <code>margin-left: 2em;</code>
  </button>

  <button type="button" class="logical">
    Logical:<br>
    <code>margin-inline-start: 2em;</code>
  </button>
</div>

<h3 class="MarginBlock">Margin Block</h3>

<div>
  <button type="button" class="typical">
    Traditional:<br>
    <code>margin: 2em 0;</code>
  </button>

  <button type="button" class="logical">
    Logical:<br>
    <code>margin-block: 2em;</code>
  </button>
</div>

<h3 class="MarginInline">Margin Inline</h3>

<div>
  <button type="button" class="typical">
    Traditional:<br>
    <code>margin: 0 2em;</code>
  </button>

  <button type="button" class="logical">
    Logical:<br>
    <code>margin-inline: 2em;</code>
  </button>
</div>


              
            
!

CSS

              
                body {
  background-color: #fff;
  color: #333;
  margin: 1em;
  font-family: "Segoe UI", -apple-system, BlinkMacSystemFont, Roboto,
    Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
  line-height: 1.5;
/*     letter-spacing: 0.12em; */
/*     word-spacing: 0.16em; */
/*     font-size: 200%; */
}

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

fieldset {
  margin: 1em;
}

label {
  display: block;
  margin: .5em 0;
}

label:focus-within {
  outline: .1em solid #00c;
}

div {
  display: flex;
  justify-content: space-around;
}

button:focus {
  box-shadow: 0 0 .5em rgba(0,0,0,.75);
}

button.typical {
  min-width: 5em;
  min-height: 3em;
  text-align: left;
  padding: .5em 1em;
}

button.logical {
  min-inline-size: 5em;
  min-block-size: 3em;
  text-align: start;
  padding-block: .5em;
  padding-inline: 1em;
}

.BorderTop + div .typical {
  border-top: .3em double #00f;
}

.BorderTop + div .logical {
  border-block-start: .3em double #00f;
}

.BorderRight + div .typical {
  border-right: .5em dotted #0c0;
}

.BorderRight + div .logical {
  border-inline-end: .5em dotted #0c0;
}

.BorderBottom + div .typical {
  border-bottom: .2em solid #c00;
}

.BorderBottom + div .logical {
  border-block-end: .2em solid #c00;
}

.BorderLeft + div .typical {
  border-left: .3em dashed #333;
}

.BorderLeft + div .logical {
  border-inline-start: .3em dashed #333;
}

.BorderBlock + div .typical {
  border-top: .3em solid #000;
  border-bottom: .3em solid #000;
}

.BorderBlock + div .logical {
  border-block: .3em solid #000;
}

.BorderInline + div .typical {
  border-left: .3em solid #000;
  border-right: .3em solid #000;
}

.BorderInline + div .logical {
  border-inline: .3em solid #000;
}

.Radii + p + h3 + div button,
.Radii + p + h3 + div + h3 + div button,
.Radii + p + h3 + div + h3 + div + h3 + div button,
.Radii + p + h3 + div + h3 + div + h3 + div + h3 + div button,
.Radii + p + h3 + div + h3 + div + h3 + div + h3 + div + h3 + div button {
  border: .2em solid #333;
}

.BorderTopLeftRadius + div .typical {
  border-top-left-radius: .75em;
}

.BorderTopLeftRadius + div .logical {
  border-start-start-radius: .75em;
}

.BorderTopRightRadius + div .typical {
  border-top-right-radius: 1.5em;
}

.BorderTopRightRadius + div .logical {
  border-start-end-radius: 1.5em;
}

.BorderBottomRightRadius + div .typical {
  border-bottom-right-radius: .75em;
}

.BorderBottomRightRadius + div .logical {
  border-end-end-radius: .75em;
}

.BorderBottomLeftRadius + div .typical {
  border-bottom-left-radius: 1.5em;
}

.BorderBottomLeftRadius + div .logical {
  border-end-start-radius: 1.5em;
}

.PaddingTop + div .typical {
  padding-top: 2em;
}

.PaddingTop + div .logical {
  padding-block-start: 2em;
}

.PaddingRight + div .typical {
  padding-right: 2em;
}

.PaddingRight + div .logical {
  padding-inline-end: 2em;
}

.PaddingBottom + div .typical {
  padding-bottom: 2em;
}

.PaddingBottom + div .logical {
  padding-block-end: 2em;
}

.PaddingLeft + div .typical {
  padding-left: 2em;
}

.PaddingLeft + div .logical {
  padding-inline-start: 2em;
}

.PaddingBlock + div .typical {
  padding: 2em 0;
}

.PaddingBlock + div .logical {
  padding-block: 2em;
}

.PaddingInline + div .typical {
  padding: 0 2em;
}

.PaddingInline + div .logical {
  padding-inline: 2em;
}

.MarginTop + div .typical {
  margin-top: 2em;
}

.MarginTop + div .logical {
  margin-block-start: 2em;
}

.MarginRight + div .typical {
  margin-right: 2em;
}

.MarginRight + div .logical {
  margin-inline-end: 2em;
}

.MarginBottom + div .typical {
  margin-bottom: 2em;
}

.MarginBottom + div .logical {
  margin-block-end: 2em;
}

.MarginLeft + div .typical {
  margin-left: 2em;
}

.MarginLeft + div .logical {
  margin-inline-start: 2em;
}

.MarginBlock + div .typical {
  margin: 2em 0;
}

.MarginBlock + div .logical {
  margin-block: 2em;
}

.MarginInline + div .typical {
  margin: 0 2em;
}

.MarginInline + div .logical {
  margin-inline: 2em;
}

              
            
!

JS

              
                function styleBody(CSSbits) {
  var theBody = document.getElementsByTagName('body');
  theBody[0].style = CSSbits;
}
              
            
!
999px

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