// Image Mixins // - Responsive image // - Retina image // Responsive image // // Keep images from scaling beyond the width of their parents. .img-responsive(@display: block) { display: @display; max-width: 100%; // Part 1: Set a maximum relative to the parent height: auto; // Part 2: Scale the height according to the width, otherwise you get stretching } // Retina image // // Short retina mixin for setting background-image and -size. Note that the // spelling of `min--moz-device-pixel-ratio` is intentional. .img-retina(@file-1x; @file-2x; @width-1x; @height-1x) { background-image: url("@{file-1x}"); @media only screen and (-webkit-min-device-pixel-ratio: 2), only screen and ( min--moz-device-pixel-ratio: 2), only screen and ( -o-min-device-pixel-ratio: 2/1), only screen and ( min-device-pixel-ratio: 2), only screen and ( min-resolution: 192dpi), only screen and ( min-resolution: 2dppx) { background-image: url("@{file-2x}"); background-size: @width-1x @height-1x; } } 国产呦萝小初合集,久久香蕉国产线看观看乱码,俄罗斯破女处视频免费观看

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