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HTML

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Insecure Resource

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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

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JavaScript

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JavaScript preprocessors can help make authoring JavaScript easier and more convenient.

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Babel includes JSX processing.

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HTML 

              
                
<ul class='link-list'>
	<li>
		<a href='https://codepen.io/sheriffderek/pen/PjoqPm' target='code'>→ code editor view</a>
	</li>
	<li>
		<a href='https://s.codepen.io/sheriffderek/debug/PjoqPm' target='debug'>→ for testing in browser</a>
	</li>
</ul>



<article>

	<h1>Modular type styles: loud-voice()</h1>

	<p>standard-type() modular type styles... shown here with Stylus, consectetur adipisicing elit. Veniam repellendus laborum molestiae similique necessitatibus at eos dolore hic nihil suscipit aspernatur aperiam tempore rerum deleniti expedita laudantium, iste delectus veritatis.</p>
	
	<h2>Sub heading with strong-voice()</h2>

	<p><strong>standard-type() (strong)</strong> Lorem ipsum dolor sit amet, consectetur adipisicing elit. Veniam repellendus laborum molestiae similique necessitatibus at <em>example of 'emphasis' or italic </em>nihil suscipit aspernatur aperiam tempore rerum deleniti expedita laudantium, iste delectus veritatis.</p>
	
	<p>Want to learn all about web development straight from sheriffderek? <a href='https://perpetual.education' target='pe'>https://perpetual.education</a></p>
	
</article>



<div class='example-box'>
	<span><!-- hi --></span>
</div>
!

CSS 

              
                
//// $reset
a
	color: inherit

//// $color
$black = #111
$white = #fff

$gray = lighten($black, 50%)
$gray-light = lighten($gray, 20%)
$gray-dark = darken($gray, 20%)

$color = #FF6E40 // change me...
$color-light = lighten($color, 40%)
$color-dark = darken($color, 20%)

//// $space
$pad = .6rem // universal padding unit

//// $break-points
$break-point-1 = '(min-width: 500px)'
$break-point-2 = '(min-width: 900px)'

//// $type patterns
standard-type()
	font-size: 15px
	line-height: 1.4
	strong
		font-weight: bold
	em
		font-style: italic
	@media $break-point-1
		font-size: 16px

strong-voice()
	font-size: 22px
	font-weight: bold
	line-height: 1.2
	@media $break-point-1
		font-size: 24px

loud-voice()
	font-size: 30px
	line-height: 1.2
	@media $break-point-1
		font-size: 34px
	@media $break-point-2
		font-size: 40px

//// $style
body
	padding: $pad

// $article
article
	padding: $pad*2 0
	p
		standard-type()
		max-width: 740px // people don't like to read long lines
		color: $gray
		&:not(:first-of-type) // all but the first
			margin-top: $pad*2
		a
			color: $color-dark
		+ h2
			margin-top: $pad*4
	h1
		loud-voice()
		color: $color
		+ p // any paragraph following an h1
			margin-top: $pad*2 // redunant here - but for example
	h2
		strong-voice()

















/* just for fun */
.example-box // I don't know what this box has to do with anything... maybe to show the media query change?
	width: 200px
	height: 200px
	background: $color
	padding: $pad
	color: $white
	span
		opacity: .7
		&:after
			content: 'Default styles → "cascade" top-down'
	@media $break-point-1
		background: $color-dark
		span
			&:after
				content: 'After $break-point-1'
	@media $break-point-2
		background: $color-light
		span
			&:after
				content: 'After $break-point-2'

* 
	transition: .2s
!

JS
!
999px

Console