Method for observing and reacting to changes to sizes of DOM elements.
Srcset and sizes attributes
The `srcset` and `sizes` attributes on `img` (or `source`) elements allow authors to define various image resources and "hints" that assist a user agent to determine the most appropriate image source to display (e.g. high-resolution displays, small monitors, etc).
htmlimageelement api: sizes
htmllinkelement api: imagesizes
htmllinkelement api: sizes
htmlsourceelement api: sizes
css property: column-width: intrinsic sizes
html element: img: sizes
html element: link: imagesizes
html element: link: sizes
html element: source: sizes