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以下の「no css nesting」は「css nesting」に書き直せる
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no nesting css
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.knquiz-generator{
	--themecolor:#47ffc8;
}
.knquiz-generator .knquiz-footer{
	background:rgba(0,64,0,0.5);
}
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nesting css
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.knquiz-generator{
	highlight:#47ffc8;

	.knquiz-footer{
		background:rgba(0,64,0,0.5);
	}
}
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