// Image Mixins // - Responsive image // - Retina image // Responsive image // // Keep images from scaling beyond the width of their parents. @mixin img-responsive($display: block) { display: $display; max-width: 100%; // Part 1: Set a maximum relative to the parent height: auto; // Part 2: Scale the height according to the width, otherwise you get stretching } // Fluid image // @mixin img-fluid($display: block) { display: $display; width: 100%; height: auto; }