Pen Settings

HTML

CSS

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

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

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.

HTML

              
                <!--許多瀏覽器在中文文字是不支援 .text-justify 對齊功能-->

<!--.text-justify 每段文字後方皆會對齊-->
<div class="container border mt-2">
    <p>使用text-justify</p>
    <p class="text-justify">Lorem ipsum dolor sit, amet consectetur adipisicing elit. Illum aliquid officia nemo modi, animi voluptatum nulla obcaecati dolorum assumenda perspiciatis iure excepturi deleniti, temporibus in! Iusto, fugit! Omnis quis laudantium fugiat itaque saepe, dicta quisquam est minus, necessitatibus repellendus dolorum at enim harum reiciendis quasi quia aliquid perferendis. Culpa, repellat.</p>
</div>
<!--未使用 .text-justify-->
<div class="container border mt-2">
    <p>未使用text-justify</p>
    <p>Lorem ipsum dolor sit, amet consectetur adipisicing elit. Illum aliquid officia nemo modi, animi voluptatum nulla obcaecati dolorum assumenda perspiciatis iure excepturi deleniti, temporibus in! Iusto, fugit! Omnis quis laudantium fugiat itaque saepe, dicta quisquam est minus, necessitatibus repellendus dolorum at enim harum reiciendis quasi quia aliquid perferendis. Culpa, repellat.</p>
</div>
              
            
!

CSS

              
                .container{
  max-width:500px;
}
              
            
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JS

              
                
              
            
!
999px

Console