@media (min-width: 90em) {

	/* article */
	.csscalc .article__content{
		width:calc(100% - 320px);
		margin-right:60px;
	}
	.csscalc .article__sidebar{
		width:260px;
	}

	/* content */
	.js .content{
		width:960px;
		margin-left:360px;
	}
	
	/* footer */
	.js .footer{
		margin-left:360px;
	}
	
	/* header */
	.js .header{
		width:300px;
	}

	/* stage */
	.js .stage{
		width:1320px;
		max-width:1320px;
	}
	
}