.embed-responsive-item,\n  iframe,\n  embed,\n  object,\n  video {\n    position: absolute;\n    top: 0;\n    bottom: 0;\n    left: 0;\n    width: 100%;\n    height: 100%;\n    border: 0;\n  }\n}\n\n@each $embed-responsive-aspect-ratio in $embed-responsive-aspect-ratios {\n  $embed-responsive-aspect-ratio-x: nth($embed-responsive-aspect-ratio, 1);\n  $embed-responsive-aspect-ratio-y: nth($embed-responsive-aspect-ratio, 2);\n\n  .embed-responsive-#{$embed-responsive-aspect-ratio-x}by#{$embed-responsive-aspect-ratio-y}...