HTMLSourceElement: sizes property
Baseline
Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since March 2017.
The sizes property of the HTMLSourceElement interface is a string representing a list of one or more sizes, representing sizes between breakpoints, to which the resource applies.
It reflects the sizes attribute of the <source> element.
Value
A string.
Examples
html
<picture>
<source
id="el"
srcset="medium-pic.jpg"
type="image/jpeg"
sizes="(50em <= width <= 60px) 50em,
(30em <= width < 50em) 30em" />
</picture>
js
const el = document.getElementById("el");
console.log(el.sizes); // Output: "(50em <= width <= 60px) 50em, (30em <= width < 50em) 30em"
el.sizes = "(50em <= width <= 60px) 100em, (30em <= width < 50em) 60em"; // Updates the sizes value
Specifications
| Specification |
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| HTML # dom-source-sizes |
Browser compatibility
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sizes
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Legend
Tip: you can click/tap on a cell for more information.
- Full support
- Full support
- See implementation notes.