display: none; } /* Devices width double pixel ratio like Retina displays: */ @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) { /* Hide 1x ratio images and Show all 2x ratio images */ img { display: none; } img.image-2x { display: block; } } </style>'; echo '<h1>Thumbnail tests</h1>'; global $thumbnail_sizes; $files = array('monument-valley/bus-stop-ahead.jpg', 'monument-valley/john-ford-point.jpg', 'monument-valley/monuments.jpg', 'monument-valley/monument-valley.jpg', 'monument-valley/monument-valley-road.jpg'); foreach ($files as $file_path) { $File = new File('shared', 0, $file_path); foreach ($thumbnail_sizes as $size_name => $size_data) { echo '<p>Size: <b>' . $size_name . '</b> - Quality: <b>' . $size_data[3] . '</b><br/>'; // Print two <img> tags for 1x and for 2x echo $File->get_tag('', '', '', '', $size_name, 'original', '', '', '', '', '', '#', '', 2); echo '</p>'; } }