Pen Settings



CSS Base

Vendor Prefixing

Add External Stylesheets/Pens

Any URL's added here will be added as <link>s in order, and before the CSS in the editor. If you link to another Pen, it will include the CSS from that Pen. If the preprocessor matches, it will attempt to combine them before processing.

+ add another resource


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


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.


Save Automatically?

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.


                <!DOCTYPE html>
<html lang="en">

  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <link rel="stylesheet" type="text/css" title="Cool stylesheet" href="style.css">

    <h1>Bob Downs</h1>
    <h2><img alt="Portrait of Bob Downs" src=""></h2>
    <li>Science Fiction</li>
    <li>Self-driving Cars</li>
  <h2><img alt="Hand-drawn wireframe of this webpage." src=""></h2>



                body {
  font-family: HelveticaNeue-Light, "Helvetica Neue Light", "Helvetica Neue",
    Helvetica, Arial, "Lucida Grande", sans-serif;
  /* Fluid Typography (credit: font-size: calc([minimum size] + ([maximum size] - [minimum size]) * ((100vw - [minimum viewport width]) / ([maximum viewport width] - [minimum viewport width]))); */
  font-size: calc(14px + (26 - 14) * ((100vw - 300px) / (1600 - 300)));
  font-weight: 300;
  margin: 0 auto;
  width: 480px;
h1 {
  /* CSS function that creates an image consisting of a progressive transition between two or more colors along a straight line. Using this function with the "background" property and clipping it to the text (see -webkit-background-clip property, below) allows the "h1" text to appear to have a gradient fill. */
  background: -moz-linear-gradient(top, #1e5799 0, #7db9e8 100%);
  background: -ms-linear-gradient(top, #1e5799 0, #7db9e8 100%);
  background: -o-linear-gradient(top, #1e5799 0, #7db9e8 100%);
  background: -webkit-gradient(
    left top,
    left bottom,
    color-stop(0, #1e5799),
    color-stop(100%, #7db9e8)
  background: -webkit-linear-gradient(top, #1e5799 0, #7db9e8 100%);
  /* Keep "h1" font size the same regardless of size of screen, while rest of text in <body> is "fluid". (This assignment was completed prior to the availability of variable fonts.) */
  font-size: 72px;
  /* Center text of "h1". */
  text-align: center;
  /* The background is painted within (clipped to) the foreground text. */
  -webkit-background-clip: text;
  /* Non-standard CSS property, but worked for this assignment, at least. Specifies the fill color of characters of text - setting this to "transparent" allowed the gradient background to show through. */
  -webkit-text-fill-color: transparent;
img {
  background-color: #ff0;
  border-radius: 25px;
  /* box-shadow: h-offset v-offset blur spread color; */
  box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.2), 0 6px 20px 0 rgba(0, 0, 0, 0.19);
  display: block;
  height: auto;
  margin: 0 auto;
  width: 480px;