Responsive Images: srcset, sizes and the picture Element

Serve the right image to every device: smaller files for phones, sharper images for high-density screens and different crops for different layouts. Learn resolution switching with srcset and sizes, density descriptors, art direction with the picture element, and good practice for performance and accessibility.

Tutwoo is an independent learning provider. This course is written from the official documentation listed in the sources, which can change, so always check the current documentation for the version you use. It is not endorsed by any of the organisations listed and is not an accredited qualification.

© 2026 Tutwoo UK Limited. This course was created in-house by Tutwoo and is our original work. It is for your own learning only: please do not copy, share, record or resell it.