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About HTML Preprocessors

HTML preprocessors can make writing HTML more powerful or convenient. For instance, Markdown is designed to be easier to write and read for text documents and you could write a loop in Pug.

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Adding Classes

In CodePen, whatever you write in the HTML editor is what goes within the <body> tags in a basic HTML5 template. So you don't have access to higher-up elements like the <html> tag. If you want to add classes there that can affect the whole document, this is the place to do it.

About the <head>

In CodePen, whatever you write in the HTML editor is what goes within the <body> tags in a basic HTML5 template. If you need things in the <head> of the document, put that code here.

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Insecure Resource

The resource you are linking to is using the 'http' protocol, which may not work when the browser is using https.

About CSS Preprocessors

CSS preprocessors help make authoring CSS easier. All of them offer things like variables and mixins to provide convenient abstractions.

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CSS Base

About CSS Base

It's a common practice to apply CSS to a page that styles elements such that they are consistent across all browsers. We offer two of the most popular choices: normalize.css and a reset. Or, choose Neither and nothing will be applied.

     

Vendor Prefixing

About Vendor Prefixing

To get the best cross-browser support, it is a common practice to apply vendor prefixes to CSS properties and values that require them to work. For instance -webkit- or -moz-.

We offer two popular choices: Autoprefixer (which processes your CSS server-side) and -prefix-free (which applies prefixes via a script, client-side).

     

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.

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About External Resources

You can apply CSS to your Pen from any stylesheet on the web. Just put a URL to it here and we'll apply it, in the order you have them, before the CSS in the Pen itself.

If the stylesheet you link to has the file extension of a preprocessor, we'll attempt to process it before applying.

You can also link to another Pen here, and we'll pull the CSS from that Pen and include it. If it's using a matching preprocessor, we'll combine the code before preprocessing, so you can use the linked Pen as a true dependency.

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About JavaScript Preprocessors

JavaScript preprocessors can help make authoring JavaScript easier and more convenient. For instance, CoffeeScript can help prevent easy-to-make mistakes and offer a cleaner syntax and Babel can bring ECMAScript 6 features to browsers that only support ECMAScript 5.

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You're using npm packages, so we've auto-selected Babel for you here, which we require to process imports and make it all work. If you need to use a different JavaScript preprocessor, remove the packages in the npm tab.

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.

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About External Resources

You can apply a script from anywhere on the web to your Pen. Just put a URL to it here and we'll add it, in the order you have them, before the JavaScript in the Pen itself.

If the script you link to has the file extension of a preprocessor, we'll attempt to process it before applying.

You can also link to another Pen here, and we'll pull the JavaScript from that Pen and include it. If it's using a matching preprocessor, we'll combine the code before preprocessing, so you can use the linked Pen as a true dependency.

Learn more

+ add another resource

Use npm Packages

We can make npm packages available for you to use in your JavaScript. We use webpack to prepare them and make them available to import. We'll also process your JavaScript with Babel.

⚠️ This feature can only be used by logged in users.

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HTML Settings

Here you can Sed posuere consectetur est at lobortis. Donec ullamcorper nulla non metus auctor fringilla. Maecenas sed diam eget risus varius blandit sit amet non magna. Donec id elit non mi porta gravida at eget metus. Praesent commodo cursus magna, vel scelerisque nisl consectetur et.

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HTML

            
              <div class="nicescroll-box demo-box">
	<div class="wrap">
		<p>
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Vivamus fermentum risus et aliquam facilisis. In hac habitasse platea dictumst. Donec eget sagittis ligula, nec volutpat orci. Nulla facilisi. Suspendisse eget arcu non velit mollis feugiat eu eu dui. Mauris fermentum purus ac purus maximus convallis. Maecenas sed arcu id orci pretium aliquet ut vel velit. Sed suscipit, mauris ut faucibus volutpat, eros nibh venenatis lectus, ac tempor turpis massa quis velit. Suspendisse potenti. Quisque ullamcorper dolor feugiat suscipit suscipit.
</p>
<p>
Nam tincidunt nisi quis diam condimentum, ac rutrum lacus mattis. Nunc laoreet, arcu nec convallis ultricies, risus felis dignissim lacus, in faucibus enim justo egestas mauris. Nulla eu mattis nisl. Aenean eget imperdiet velit. Nulla facilisi. Nam ultricies tellus quis arcu euismod semper. Nam non lectus tincidunt odio ullamcorper posuere. Nunc aliquam, mi nec malesuada elementum, lorem ante porttitor metus, a dignissim nulla erat quis augue. Praesent rutrum, justo vitae vulputate hendrerit, purus diam convallis erat, in congue dui dui a eros.
</p>
<p>
Etiam ut turpis vel metus dapibus hendrerit. Curabitur dictum fringilla turpis eu feugiat. Proin malesuada dictum arcu, sed mollis mi iaculis ut. Cras ac elit at metus pellentesque euismod. Curabitur aliquam metus imperdiet dui aliquam malesuada. In suscipit quam vel leo rutrum pulvinar. Aenean libero lacus, tincidunt at tellus ut, ultrices pretium eros. Duis vestibulum mi id eros condimentum mattis.
</p>
<p>
In quis dolor at lorem mattis elementum in eu ligula. Aliquam posuere risus a nunc iaculis, eu iaculis lorem consectetur. Etiam vel mi eget purus gravida sodales sed eu nisl. Donec dui sem, auctor ut porta auctor, efficitur a nunc. Ut laoreet neque enim, a porta enim lacinia vitae. Nunc leo ipsum, consectetur eget vehicula vel, tempor id lacus. Curabitur id ipsum id tellus aliquam suscipit vel in felis. Vestibulum varius nibh tincidunt, mattis magna et, egestas augue. Mauris diam ante, iaculis non feugiat malesuada, imperdiet quis augue. Nam imperdiet nunc et condimentum congue. Aliquam bibendum faucibus est, ut egestas nunc accumsan eu. Nam condimentum dignissim metus, in sollicitudin risus ullamcorper eu. In in fringilla leo.
</p>
<p>
Sed in neque arcu. Maecenas vulputate condimentum neque eget hendrerit. Suspendisse id neque id dui sodales cursus vel vel libero. Pellentesque sed dui laoreet, hendrerit urna non, vulputate sapien. Mauris convallis viverra ante et rutrum. Vivamus sagittis pharetra nisi, id ornare nunc mattis nec. In non venenatis sem. Maecenas et pulvinar purus, ac finibus tellus. In vel nulla ut quam dapibus mollis. Etiam id neque libero. Mauris placerat mauris vitae augue volutpat laoreet. In sit amet urna elit. Phasellus tincidunt dolor leo, ac vulputate eros maximus quis. Phasellus efficitur odio id ligula tristique, vel rutrum ante ultricies.
</p>
	</div>
</div>
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CSS

            
              .nicescroll-rails-vr {
	border: 1px solid #9c27b0;
	.nicescroll-cursors {
		margin: 3px 0;
	}
}

// For Demo Purpose only
.demo-box {
	min-width: 300px;
	max-width: 90%;
	margin: 0 auto;
	p {
		font-size: 1.5rem;
	}
}
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JS

            
              $("body").niceScroll({
	cursorcolor: "#9C27B0",
	cursorwidth: "5px", 
	cursorborder: "none",
	cursorborderradius: "5px",
	autohidemode: false,
	railpadding: { top: 0, right: 3, left: 3, bottom: 0 }
});
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999px
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