USA.css

.usa-stars {}

.usa-stars {
	background: linear-gradient(324deg, #3c3b6e 4%, transparent 4%) -0.7in 0.43in,
		linear-gradient(36deg, #3c3b6e 4%, transparent 4%) 0.3in 0.43in,
		linear-gradient(72deg, #fff 8.5%, transparent 8.5%) 0.3in 0.43in,
		linear-gradient(288deg, #fff 8.5%, transparent 8.5%) -0.7in 0.43in,
		linear-gradient(216deg, #fff 7.5%, transparent 7.5%) -0.7in 0.23in,
		linear-gradient(144deg, #fff 7.5%, transparent 7.5%) 0.3in 0.23in,
		linear-gradient(324deg, #3c3b6e 4%, transparent 4%) -0.2in 0.93in,
		linear-gradient(36deg, #3c3b6e 4%, transparent 4%) 0.8in 0.93in,
		linear-gradient(72deg, #fff 8.5%, transparent 8.5%) 0.8in 0.93in,
		linear-gradient(288deg, #fff 8.5%, transparent 8.5%) -0.2in 0.93in,
		linear-gradient(216deg, #fff 7.5%, transparent 7.5%) -0.2in 0.73in,
		linear-gradient(144deg, #fff 7.5%, transparent 7.5%) 0.8in 0.73in,
		#3c3b6e;
	background-size: 1in 1in;
}

.usa-stripes-horizontal {}

.usa-stripes-horizontal {
	background: repeating-linear-gradient(
		#b22234 0,
		#b22234 0.2in,
		#fff 0.2in,
		#fff 0.4in
	);
}

.usa-stripes-vertical {}

.usa-stripes-vertical {
		background: repeating-linear-gradient(
			90deg,
			#b22234 0,
			#b22234 0.2in,
			#fff 0.2in,
			#fff 0.4in
		);
}

.usa-diamond {}

.usa-diamond {
	background: linear-gradient(
			45deg,
			#b22234 25%,
			transparent 0,
			transparent 75%,
			#3c3b6e 0,
			#3c3b6e
		),
		linear-gradient(
			-45deg, 
			#b22234 25%, 
			transparent 0, 
			transparent 75%, 
			#3c3b6e 0, 
			#3c3b6e
		), #fff;
	background-position: 50% 50%;
	background-size: 0.5in 0.5in;
}

.usa-radial {}

.usa-radial {
	background: radial-gradient(
			circle at 50% 0,
			#fff 0,
			#fff 0.2in,
			#3c3b6e 0,
			#3c3b6e 0.4in,
			#fff 0,
			#fff 0.6in,
			#b22234 0,
			#b22234 0.8in,
			#fff 0,
			#fff 1.2in
		),
		#fff;
	background-size: 1.4in 100%;
	background-position: 50% 0;
	background-repeat: repeat-x;
}

.usa-plaid {}

.usa-plaid {
	background: repeating-linear-gradient(
			45deg,
			#b22234 0,
			#b22234 0.2in,
			#fff 0,
			#fff 0.25in,
			transparent 0,
			transparent 0.5in,
			#fff 0,
			#fff 0.55in
		),
		repeating-linear-gradient(
			-45deg,
			#3c3b6e,
			#3c3b6e 0.25in,
			transparent 0,
			transparent 0.4in
		),
		#fff;
}

.usa-conic { }

.usa-conic {
	/* Conic gradients are not supported in some browsers (Caniuse) */
	background: repeating-conic-gradient(
		#b22234 0,
		#b22234 10deg,
		0,
		#fff 20deg,
		0,
		#3c3b6e 30deg,
		0,
		#fff 40deg
	);
}