@use 'sass:math';

$a: 120deg;
$u: .125em;

html {
	background: 
		linear-gradient($a, 
				#000 $u, 
				#0092b7 calc(#{$u} + 1px) calc(50% - #{$u}), 
				#000 calc(50% - #{$u} + 1px) calc(50% + #{$u}), 
				#0092b7 calc(50% + #{$u} + 1px) calc(100% - #{$u}), 
				#000 calc(100% - #{$u} + 1px));
	background-size: 
		12*$u*math.abs(math.cos($a)) 12*$u*math.abs(math.sin($a))
}
View Compiled

External CSS

This Pen doesn't use any external CSS resources.

External JavaScript

This Pen doesn't use any external JavaScript resources.