æ¦è¦ Sprite layouts | Compass Documentation compassã§ã®cssã¹ãã©ã¤ãã試ãã¦ã¿ãã®ã§ã¡ã¢ã sprite-backgroundã£ã¦ããmixinã¯çµæ§è²ã ãªäººãããã°ã«æ¸ãã¦ããã ãã©ãretina対å¿ãã¦ããªãã£ãããç¡é§ãªå¦çãå ¥ã£ã¦ããããã¦ãªãããã£ããããªãã£ãã®ã§èªåã§å®è£ ãã¦ã¿ãã å®æå 以ä¸ã®ãã¡ã¤ã«ã¯ä½¿ãåããã®ã§ãmixins/_sprite.scssã¿ããã«ããã¸ã§ã¯ãã«ä¾åããªããã¡ã¤ã«ã¨ãã¦ç½®ãã¦ããã @mixin sprite-background-size($name, $sprites, $device-pixel-ratio: 2) { $_width: image-width(sprite-file($sprites, $name)) / $device-pixel-ratio; $_height:
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