// Image Mixins
// - Responsive image
// - Retina image


// Responsive image
//
// Keep images from scaling beyond the width of their parents.

@mixin img-fluid($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.

@mixin img-retina($file-1x, $file-2x, $width-1x, $height-1x) {
	background-image: url($file-1x);

	// Autoprefixer takes care of adding -webkit-min-device-pixel-ratio and -o-min-device-pixel-ratio,
	// but doesn't convert dppx=>dpi.
	// There's no such thing as unprefixed min-device-pixel-ratio since it's nonstandard.
	// Compatibility info: http://caniuse.com/#feat=css-media-resolution
	@media
	only screen and (min-resolution: 192dpi), // IE9-11 don't support dppx
	only screen and (min-resolution: 2dppx) { // Standardized
		background-image: url($file-2x);
		background-size: $width-1x $height-1x;
	}
}
