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GenerateBlocks dynamic featured image sizing
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| add_action( 'wp_head', function() { | |
| if( is_single() && has_post_thumbnail() ) { | |
| // Get our images URLs | |
| $feat_img_url_medium = get_the_post_thumbnail_url(get_the_ID(),'medium'); | |
| $feat_img_url_medium_large = get_the_post_thumbnail_url(get_the_ID(),'medium_large'); | |
| $feat_img_url_large = get_the_post_thumbnail_url(get_the_ID(),'large'); | |
| $feat_img_url_full = get_the_post_thumbnail_url(get_the_ID(),'full'); | |
| // print our preloaded images | |
| echo '<link rel="preload" media="(max-width: 400px)" as="image" href="'.$feat_img_url_medium.'"/>'; | |
| echo '<link rel="preload" media="(max-width: 768px) and (min-width: 401px)" as="image" href="'.$feat_img_url_medium_large.'"/>'; | |
| echo '<link rel="preload" media="(max-width: 1024px) and (min-width: 769px)" as="image" href="'.$feat_img_url_large.'"/>'; | |
| echo '<link rel="preload" media="(min-width: 1025px)" as="image" href="'.$feat_img_url_full.'"/>'; | |
| // print our CSS styles | |
| echo '<style> | |
| @media(max-width: 400px) { | |
| .gb-container.featured-background:before { background-image: url('.$feat_img_url_medium.');} | |
| } | |
| @media(max-width: 768px) and (min-width: 401px) { | |
| .gb-container.featured-background:before { background-image: url('.$feat_img_url_medium_large.');} | |
| } | |
| @media(max-width: 1024px) and (min-width: 769px) { | |
| .gb-container.featured-background:before { background-image: url('.$feat_img_url_large.');} | |
| } | |
| @media(min-width: 1025px) { | |
| .gb-container.featured-background:before { background-image: url('.$feat_img_url_full.');} | |
| } | |
| </style>'; | |
| } | |
| },1000); |
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