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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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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.

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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-.

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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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HTML
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CSS 

              
                
html {
	--u:  2vmax;
	--c1: #f13c3c;
	--c2: #c72f2f;
	--c3: #607d8b;
	--c4: #43687a;
	--bg: #460000;
	--circle1: var(--c3) 0% 15%, var(--c4) 16% 20%, var(--c3) 21% 21%, #fff0 22% 100%;
	--circle2: var(--c1) 0% 11%, var(--c2) 12% 16%, var(--c1) 16.5% 17%, #fff0 17.5% 100%;				
	--circle3: var(--c3) 0% 4%, var(--c4) 5% 8%, var(--c3) 8.5% 9.25%, #fff0 9.75% 100%;
  --circle4: var(--c1) 0% 4%, var(--c2) 5% 8%, var(--c1) 8.5% 9.25%, #fff0 9.75% 100%;
	--black-dot: var(--bg) 0% calc(var(--u) * 0.2), #0002 calc(var(--u) * 0.3) calc(var(--u) * 0.45), #fff0 4% 100%;
	--black-dot-small: var(--bg) 0% calc(var(--u) * 0.05), #0002 calc(var(--u) * 0.1) calc(var(--u) * 0.15), #fff0 2% 100%;
	--gp: 50%/calc(var(--u) * 10) calc(var(--u) * 10);
  height: 100vh;
  background: 
		/* mini holes */	
		radial-gradient(circle at 73.5% 23.5%, var(--black-dot-small)) var(--gp),
		radial-gradient(circle at 76.5% 23.5%, var(--black-dot-small)) var(--gp),
		radial-gradient(circle at 73.5% 26.5%, var(--black-dot-small)) var(--gp),
		radial-gradient(circle at 76.5% 26.5%, var(--black-dot-small)) var(--gp),  
		radial-gradient(circle at 23.5% 73.5%, var(--black-dot-small)) var(--gp),
		radial-gradient(circle at 26.5% 73.5%, var(--black-dot-small)) var(--gp),
		radial-gradient(circle at 23.5% 76.5%, var(--black-dot-small)) var(--gp),
		radial-gradient(circle at 26.5% 76.5%, var(--black-dot-small)) var(--gp),
		radial-gradient(circle at 73.5% 73.5%, var(--black-dot-small)) var(--gp),
		radial-gradient(circle at 76.5% 73.5%, var(--black-dot-small)) var(--gp),
		radial-gradient(circle at 73.5% 76.5%, var(--black-dot-small)) var(--gp),
		radial-gradient(circle at 76.5% 76.5%, var(--black-dot-small)) var(--gp),  
		radial-gradient(circle at 23.5% 23.5%, var(--black-dot-small)) var(--gp),
		radial-gradient(circle at 26.5% 23.5%, var(--black-dot-small)) var(--gp),
		radial-gradient(circle at 23.5% 26.5%, var(--black-dot-small)) var(--gp),
		radial-gradient(circle at 26.5% 26.5%, var(--black-dot-small)) var(--gp),  	
		/* mini holes */

		/* mini buttons */
		radial-gradient(circle at 25% 25%, var(--circle3)) var(--gp),
		radial-gradient(circle at 25% 75%, var(--circle4)) var(--gp),
		radial-gradient(circle at 75% 25%, var(--circle4)) var(--gp),
		radial-gradient(circle at 75% 75%, var(--circle3)) var(--gp),
		/* mini buttons */
	
		/* blue holes */
		radial-gradient(circle at 4.5% 45.5%, var(--black-dot)) var(--gp),	
		radial-gradient(circle at 4.5% 54.5%, var(--black-dot)) var(--gp),	
		radial-gradient(circle at 95.5% 45.5%, var(--black-dot)) var(--gp),	
		radial-gradient(circle at 95.5% 54.5%, var(--black-dot)) var(--gp),	
		radial-gradient(circle at 50% 93.5%, var(--black-dot)) var(--gp),	
		radial-gradient(circle at 50% 6.5%, var(--black-dot)) var(--gp),	
		radial-gradient(circle at 56.5% 0%, var(--black-dot)) var(--gp),
		radial-gradient(circle at 56.5% 100%, var(--black-dot)) var(--gp),
		radial-gradient(circle at 43.5% 0%, var(--black-dot)) var(--gp),
		radial-gradient(circle at 43.5% 100%, var(--black-dot)) var(--gp),
		/* blue holes */
	
		/* red holes */
		radial-gradient(circle at 5% 95%, var(--black-dot)) var(--gp),
		radial-gradient(circle at 95% 5%, var(--black-dot)) var(--gp),
		radial-gradient(circle at 95% 95%, var(--black-dot)) var(--gp),
		radial-gradient(circle at 5% 5%, var(--black-dot)) var(--gp),
		radial-gradient(circle at 50% 56.5%, var(--black-dot)) var(--gp),
		radial-gradient(circle at 43.5% 50%, var(--black-dot)) var(--gp),
		radial-gradient(circle at 50% 43.5%, var(--black-dot)) var(--gp),
		radial-gradient(circle at 56.5% 50%, var(--black-dot)) var(--gp),
		/* red holes */

		/* blue buttons */
		radial-gradient(circle at 50% 0%, var(--circle1)) var(--gp),
		radial-gradient(circle at 50% 100%, var(--circle1)) var(--gp),
		radial-gradient(circle at 0% 50%, var(--circle1)) var(--gp),
		radial-gradient(circle at 100% 50%, var(--circle1)) var(--gp),
		/* blue buttons */

		/* red buttons */
		radial-gradient(circle at 0% 100%, var(--circle2)) var(--gp),
		radial-gradient(circle at 0% 0%, var(--circle2)) var(--gp),
		radial-gradient(circle at 100% 100%, var(--circle2)) var(--gp),
		radial-gradient(circle at 100% 0%, var(--circle2)) var(--gp),
		radial-gradient(circle at 50% 50%, var(--c1) 0% 23%, var(--c2) 24% 32%, var(--c1) 33% 34%, #fff0 35% 100%) var(--gp),
		/* red buttons */
  
		var(--bg);

}
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JS
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