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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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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

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.

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Babel includes JSX processing.

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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.

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Using packages here is powered by esm.sh, which makes packages from npm not only available on a CDN, but prepares them for native JavaScript ESM usage.

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HTML 

              
                <div class="site-wrapper">
	<section class="newsletter">
		<div class="newsletter__copy">
			<h3>Subscribe to WWD’s newsletters</h3>
			<p>Get all the top news stories and alert straight to your inbox.</p>
		</div>
		<form class="newsletter__form js-newsletter-form">
			<input class="newsletter__form-input" type="email" placeholder="Email Address">
			<input class="newsletter__form-submit" type="submit" value="Sign Up">
		</form>
	</section>
</div>
!

CSS 

              
                // Notes:
// - Mobile first – layout is added in media query to take advantage of default element stacking.
// - Width values are *not* coded in static px or rem values.
// - These are structural styles only. Please add visual design properties in the appropriate rules.
// - This is a *suggestion* – check the existing codebase for reusable markup and styling patterns.
// - If you have feedback, we are open to it! Please contact @laras126 on the PMC Slack, or lschenck@pmc.com.

.newsletter {
	background-color: #EEE; // Refer to mockup or existing Sass variables
	padding: 15px; // Refer to spacing value in mockup
	
	// Refer to existing media query patterns in codebase
	@media( min-width: 800px ) {	
		display: flex;
		align-items: center;
		justify-content: space-between;
	}
	
	&__form {
		display: flex;
		justify-content: space-between;
		min-width: 48%;
	}
	
	&__form-input {
		flex-basis: 75%;
		margin-right: 15px; // Refer to mockup for this value
	}
}


// Base styles - not for reference.
.site-wrapper {
	max-width: 800px;
	margin: 30px auto;
}
!

JS 

              
                // Note:
// - A separate .js-* prefixed selector is used to handle JS interactions.
// - Using jQuery

$('.js-newsletter-form').on('submit', (e) => {
	e.preventDefault(); // Prevent a page reload for this example and for asynchronous calls.
	$('.newsletter__form').html('<p>Thank you!</p>');
});
!
999px

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