Pen Settings

HTML

CSS

CSS Base

Vendor Prefixing

Add External Stylesheets/Pens

Any URLs added here will be added as <link>s in order, and before the CSS in the editor. You can use the CSS from another Pen by using its URL and the proper URL extension.

+ add another resource

JavaScript

Babel includes JSX processing.

Add External Scripts/Pens

Any URL's added here will be added as <script>s in order, and run before the JavaScript in the editor. You can use the URL of any other Pen and it will include the JavaScript from that Pen.

+ add another resource

Packages

Add Packages

Search for and use JavaScript packages from npm here. By selecting a package, an import statement will be added to the top of the JavaScript editor for this package.

Behavior

Auto Save

If active, Pens will autosave every 30 seconds after being saved once.

Auto-Updating Preview

If enabled, the preview panel updates automatically as you code. If disabled, use the "Run" button to update.

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

Want to change your Syntax Highlighting theme, Fonts and more?

Visit your global Editor Settings.

HTML

              
                <div class="wrapper">
  <aside class="sidebar">
    <blockquote>
      <p>“There is no conquest to which the entire human race aspires more ardently than the Empire of the Air.”</p>
    </blockquote>
  </aside>
  
  <article class="content">
    <h1>A Balloon Ascension at Midnight</h1>
    <p>We had agreed, my companion and I, that I should call for him at his house, after dinner, not later than eleven o’clock.</p>

  <p>This athletic young Frenchman belongs to a small set of Parisian sportsmen, who have taken up “ballooning” as a pastime.</p>

<p>After having exhausted all the sensations that are to be found in ordinary sports, even those of “automobiling” at a breakneck speed, the members of the “Aéro Club” now seek in the air, where they indulge in all kinds of daring feats, the nerve-racking excitement that they have ceased to find on earth.</p>

<p>I might add that these facts were but vaguely known to me before I had been introduced, by a mutual friend, to this nouveau siècle young sportsman, and had accepted his invitation to accompany him in his next aerial voyage.</p>

<p>When we reached the vacant lot at the huge gas works of St. Denis, where our balloon was being inflated, I could not help feeling a bit alarmed at the sight of that little bubble—only a few hundred cubic metres—and the very small basket which were soon to take us up in the air.</p>

<p>All the éclat, the ceremonial, and the emotional “good-bys” that usually accompany the “let her go!” of a balloon, were totally lacking when the “Rolla” left the earth. The start was effected in a quiet and business like manner, and the act seemed so natural to the people who were helping us off, that their demeanor on this occasion had a beneficial and soothing effect on my excited nerves.</p>

<p>A few minutes after midnight, when the last little sacks of sand ballast had been hung out over the edge of our wicker-basket, when a final glance had been given to the ropes, the net, the valve, etc.,—with a careless au revoir from the foreman of the gas-works, and a parting joke from the cocher who had driven us there,—the dark forms, whose hands were holding us down, silently stepped back, and with a gentle and graceful swing the “Rolla” started off on its sixth ascension.</p>
  </article>
  
</div>
              
            
!

CSS

              
                .wrapper {
  margin: 0 auto;
  width: 90%;
  max-width: 800px;
  display: grid;
  grid-template-columns: 1fr 3fr;
  grid-gap: 20px;
}

.sidebar {
  grid-column: 1;
  background-color: #333;
  color: #fff;
  font-size: 90%;
  padding: 10px;
}

.content {
  grid-column: 2;
}

html {
  box-sizing: border-box;
}
*, *:before, *:after {
  box-sizing: inherit;
}

body {
  font: 1em/1.4 Roboto, "Helvetica Neue", Helvetica, Arial, sans-serif;
  background-color: #fafafa;
}

blockquote {
  margin: 0;
  padding: 0;
}
              
            
!

JS

              
                
              
            
!
999px

Console