In web design, chunks are small but coherent and meaningful blocks of information that help the user to grasp and understand the content of a website more easily. These blocks of information can consist of text, images, videos or other content and are designed in such a way that they are visually separated from each other and have a clear hierarchy.

The use of chunks in web design has several advantages. Firstly, they help the user to grasp the content of a website more quickly and efficiently, as they allow them to focus on a specific block of information and process it quickly. Secondly, they make the content of a website more visually appealing and attractive by breaking it down into small, easily digestible chunks.

Chunks can also help a website to be better structured and organised by helping to ensure that content is arranged logically and making it easier to navigate through the website. Chunks can also be used to highlight and emphasise important information by inserting it into larger or more visually striking blocks of information.