HTTP/2 301
server: nginx
date: Wed, 23 Jul 2025 23:22:29 GMT
content-type: text/html
content-length: 162
location: https://developer.mozilla.org/en-US/docs/Web/API/HTMLVideoElement/resize_event
strict-transport-security: max-age=60; includeSubDomains
via: 1.1 google
alt-svc: h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
HTTP/2 200
content-type: text/html
x-guploader-uploadid: ABgVH8-tEQy5z38MyUYdAAuspzf6t0wcqPAvSUJf3XVCTehFIvsyrzzf-jwQjGoLFVukve5a
cache-control: public, max-age=3600
expires: Thu, 24 Jul 2025 00:22:30 GMT
last-modified: Wed, 23 Jul 2025 00:45:39 GMT
etag: W/"d7d272e71f742916c233ca58d62852bf"
x-goog-generation: 1753231539204960
x-goog-metageneration: 1
x-goog-stored-content-encoding: identity
x-goog-stored-content-length: 71319
x-goog-meta-goog-reserved-file-mtime: 1753230353
x-goog-hash: crc32c=j0e61g==, md5=19Jy5x90KRbCM8pY1ihSvw==
x-goog-storage-class: STANDARD
accept-ranges: none
alt-svc: h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
alt-svc: clear
x-content-type-options: nosniff
strict-transport-security: max-age=63072000
content-security-policy: default-src 'self'; script-src 'report-sample' 'self' 'wasm-unsafe-eval' https://www.google-analytics.com/analytics.js https://www.googletagmanager.com/gtag/js assets.codepen.io production-assets.codepen.io https://js.stripe.com 'sha256-EehWlTYp7Bqy57gDeQttaWKp0ukTTEUKGP44h8GVeik=' 'sha256-XNBp89FG76amD8BqrJzyflxOF9PaWPqPqvJfKZPCv7M='; script-src-elem 'report-sample' 'self' 'wasm-unsafe-eval' https://www.google-analytics.com/analytics.js https://www.googletagmanager.com/gtag/js assets.codepen.io production-assets.codepen.io https://js.stripe.com 'sha256-EehWlTYp7Bqy57gDeQttaWKp0ukTTEUKGP44h8GVeik=' 'sha256-XNBp89FG76amD8BqrJzyflxOF9PaWPqPqvJfKZPCv7M='; style-src 'report-sample' 'self' 'unsafe-inline'; object-src 'none'; base-uri 'self'; connect-src 'self' developer.allizom.org bcd.developer.allizom.org bcd.developer.mozilla.org updates.developer.allizom.org updates.developer.mozilla.org https://*.google-analytics.com https://*.analytics.google.com https://*.googletagmanager.com https://incoming.telemetry.mozilla.org https://observatory-api.mdn.allizom.net https://observatory-api.mdn.mozilla.net https://api.github.com/search/issues stats.g.doubleclick.net https://api.stripe.com; font-src 'self'; frame-src 'self' interactive-examples.mdn.mozilla.net interactive-examples.mdn.allizom.net mdn.github.io live-samples.mdn.mozilla.net live-samples.mdn.allizom.net *.mdnplay.dev *.mdnyalp.dev *.play.test.mdn.allizom.net https://v2.scrimba.com https://scrimba.com jsfiddle.net www.youtube-nocookie.com codepen.io survey.alchemer.com https://js.stripe.com; img-src 'self' data: *.githubusercontent.com *.googleusercontent.com *.gravatar.com mozillausercontent.com firefoxusercontent.com profile.stage.mozaws.net profile.accounts.firefox.com developer.mozilla.org mdn.dev interactive-examples.mdn.mozilla.net interactive-examples.mdn.allizom.net wikipedia.org upload.wikimedia.org https://mdn.github.io/shared-assets/ https://mdn.dev/ https://*.google-analytics.com https://*.googletagmanager.com www.gstatic.com; manifest-src 'self'; media-src 'self' archive.org videos.cdn.mozilla.net https://mdn.github.io/shared-assets/; child-src 'self'; worker-src 'self';
x-frame-options: DENY
origin-trial: AxVILwizhbMjxFeHOn1P3R8niO1RJY/smaK4B4d1rLzc1gTaxtXMSaTi+FoigYgCw40uFRDwFcEAeqDR+vVLOW4AAABfeyJvcmlnaW4iOiJodHRwczovL2RldmVsb3Blci5tb3ppbGxhLm9yZyIsImZlYXR1cmUiOiJQcml2YXRlQXR0cmlidXRpb25WMiIsImV4cGlyeSI6MTc0MjA3OTYwMH0=
x-cloud-trace-context: 9ebfbd82146d602c8fc1ced2a6bd9dd9
date: Wed, 23 Jul 2025 23:22:31 GMT
server: Google Frontend
via: 1.1 google
vary: Accept-Encoding
content-encoding: gzip
x-cache: miss
HTMLVideoElement: resize event - Web APIs | MDNHTMLVideoElement: resize event
Baseline Widely available
The resize
event of the HTMLVideoElement
interface fires when one or both of the videoWidth
and videoHeight
properties have just been updated.
This event is not cancelable but may bubble.
Use the event name in methods like addEventListener()
, or set an event handler property.
addEventListener("resize", (event) => { })
onresize = (event) => { }
<video id="media" src="https://example.com/video.mp4"></video>
const el = document.getElementById("media");
el.addEventListener("resize", () => {
console.log("The size of the video element has changed!");
});