lazySizes is a fast (jank-free) lazyloader for images (including responsive images), iframes and scripts/widgets. It may become also your number one tool to integrate responsive images. Due to the fact that it can also automatically calculate the sizes attribute for your responsive images, it helps to separate layout (CSS) from content/structure (HTML) and makes integrating responsive images into any environment simply simple.

Tags: #Code, #Javascript, #Lazy Load, #Plugin, #Responsive, #Web Development