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

              
                <h1>Testing IE's 31 CSS @import Limit</h1>

<p>IE has a limitation of importing 31 stylesheets.</p>

<ul>
  <li>All rows should have a background color if the rules are being applied properly</li>
  <li>In IE9 and lower only 31 rows have backgrounds</li>
</ul>

<p><a href="http://spaceninja.com/2015/04/01/ie-css-limits/">Learn more about this limit</a></p>

<div class="demo01">Test 01</div>
<div class="demo02">Test 02</div>
<div class="demo03">Test 03</div>
<div class="demo04">Test 04</div>
<div class="demo05">Test 05</div>
<div class="demo06">Test 06</div>
<div class="demo07">Test 07</div>
<div class="demo08">Test 08</div>
<div class="demo09">Test 09</div>
<div class="demo10">Test 10</div>
<div class="demo11">Test 11</div>
<div class="demo12">Test 12</div>
<div class="demo13">Test 13</div>
<div class="demo14">Test 14</div>
<div class="demo15">Test 15</div>
<div class="demo16">Test 16</div>
<div class="demo17">Test 17</div>
<div class="demo18">Test 18</div>
<div class="demo19">Test 19</div>
<div class="demo20">Test 20</div>
<div class="demo21">Test 21</div>
<div class="demo22">Test 22</div>
<div class="demo23">Test 23</div>
<div class="demo24">Test 24</div>
<div class="demo25">Test 25</div>
<div class="demo26">Test 26</div>
<div class="demo27">Test 27</div>
<div class="demo28">Test 28</div>
<div class="demo29">Test 29</div>
<div class="demo30">Test 30</div>
<div class="demo31">Test 31</div>
<div class="demo32">Test 32</div>

<p>&nbsp;</p>
              
            
!

CSS

              
                @import url("https://codepen.io/spaceninja/pen/NPmrpE.css");
@import url("https://codepen.io/spaceninja/pen/qEwNmq.css");
@import url("https://codepen.io/spaceninja/pen/LEvZyx.css");
@import url("https://codepen.io/spaceninja/pen/dPLXWW.css");
@import url("https://codepen.io/spaceninja/pen/YPMWVx.css");

@import url("https://codepen.io/spaceninja/pen/mygEmp.css");
@import url("https://codepen.io/spaceninja/pen/Pwgzme.css");
@import url("https://codepen.io/spaceninja/pen/ByEzRP.css");
@import url("https://codepen.io/spaceninja/pen/bNJeWm.css");
@import url("https://codepen.io/spaceninja/pen/NPmrjE.css");

@import url("https://codepen.io/spaceninja/pen/QwPEvY.css");
@import url("https://codepen.io/spaceninja/pen/jERraR.css");
@import url("https://codepen.io/spaceninja/pen/jERrmJ.css");
@import url("https://codepen.io/spaceninja/pen/yyrJbd.css");
@import url("https://codepen.io/spaceninja/pen/MYRemN.css");

@import url("https://codepen.io/spaceninja/pen/ZYZOyz.css");
@import url("https://codepen.io/spaceninja/pen/emozRY.css");
@import url("https://codepen.io/spaceninja/pen/ogOLwZ.css");
@import url("https://codepen.io/spaceninja/pen/dPLXRW.css");
@import url("https://codepen.io/spaceninja/pen/VYNjWW.css");

@import url("https://codepen.io/spaceninja/pen/YPMWQx.css");
@import url("https://codepen.io/spaceninja/pen/vEMKZe.css");
@import url("https://codepen.io/spaceninja/pen/RNORgj.css");
@import url("https://codepen.io/spaceninja/pen/mygEwp.css");
@import url("https://codepen.io/spaceninja/pen/GgLqEQ.css");

@import url("https://codepen.io/spaceninja/pen/Pwgzje.css");
@import url("https://codepen.io/spaceninja/pen/ByEzZP.css");
@import url("https://codepen.io/spaceninja/pen/wBZWeE.css");
@import url("https://codepen.io/spaceninja/pen/bNJeRm.css");
@import url("https://codepen.io/spaceninja/pen/WbWxOL.css");

@import url("https://codepen.io/spaceninja/pen/QwPEgY.css");
@import url("https://codepen.io/spaceninja/pen/KwYMqY.css");
              
            
!

JS

              
                
              
            
!
999px

Console