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HTML

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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

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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.

!
Insecure Resource

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

CSS

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).

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JavaScript

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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Babel is required to process package imports. If you need a different preprocessor remove all packages first.

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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.

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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;
	}
}
!

JS 

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

Console