Pen Settings

HTML

CSS

CSS Base

Vendor Prefixing

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JavaScript

Babel includes JSX processing.

Add External Scripts/Pens

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Packages

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Behavior

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Format on Save

If enabled, your code will be formatted when you actively save your Pen. Note: your code becomes un-folded during formatting.

Editor Settings

Code Indentation

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HTML

              
                <footer>
  Orthogonal writing modes are broken in FireFox.
  You can see the relevant issue here in Chrome.
</footer>
<div class="vertical">
  <div class="padded">
    <div class="horizontal">
      <div class="container">
        <p>short text</p>
      </div>
    </div>
  </div>
</div>
<div class="vertical">
  <div class="padded">
    <div class="horizontal">
      <div class="container">
        <p>longer text results in a smaller width in a smaller width</p>
      </div>
    </div>
  </div>
</div>

              
            
!

CSS

              
                * { box-sizing: border-box; }
div { border: thick solid red; }

/* vertical writing mode */
.vertical {
  width: 500px;
  writing-mode: vertical-lr;
}

/* % "block" padding on the right */
.padded {
  width: 100%;
  padding-right: 50%; /* this percentage is relative to the height */
  border-color: blue;
}

/* back to horizontal writing mode (on or above the container) */
.horizontal {
  writing-mode: horizontal-tb;
  width: 100%;
  border-color: green;
}

.container {
  width: 100%;
  contain: inline-size;
}

/* 💥 changes to content impact the container's inline size */
/* the results currently seem to be stateful? */
p {
  width: min-content;
}

              
            
!

JS

              
                
              
            
!
999px

Console