CSS preprocessors help make authoring CSS much easier. All of them present things like variables and mixins to supply effortless abstractions.

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In CodePen, regardless of what you write inside the HTML editor is exactly what goes throughout the tags in a simple HTML5 template. If you want matters within the in the doc, place that code in this article.

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It truly is a common follow to apply CSS into a site that models features such that they are constant across all browsers. We offer two of the most popular choices: normalize.css along with a reset. Or, select Neither and practically nothing is going to be utilized.

It's also possible to backlink to a different Pen listed here, and we will pull the JavaScript from that Pen and contain it. If It really is using a matching preprocessor, we'll Incorporate the code right before preprocessing, so You may use the joined Pen as a true dependency.

You'll be able to apply a script from anywhere online on your Pen. Just place a URL to it right here and we'll increase it, from the purchase you've got them, before the check here JavaScript within the Pen alone.

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Seek out and use JavaScript packages from npm in this article. By deciding on a package deal, an import assertion is going to be added to the best in the JavaScript editor for this package.

You may use CSS towards your Pen from any stylesheet on the net. Just set a URL to it listed here and we'll implement it, in the buy you've them, prior to the CSS within the Pen by itself.

When the script you backlink to has the file extension of a preprocessor, we will make an effort to method it before making use of.

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preprocessor, use the right URL Extension and we'll Merge the code in advance of preprocessing, so You should use the connected Pen as a true dependency.

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HTML preprocessors will make writing HTML a lot more strong or easy. For instance, Markdown is made to be simpler to publish and browse for textual content paperwork and you could potentially write a loop in Pug.