HTML - <img>
The HTML <img> element represents an image in the document.
Examples
Example 1: Alternative text
<img src="mdn-logo-sm.png" alt="MDN">
Example 2: Image link
<a href="https://developer.mozilla.org/">MDN<img src="mdn-logo-sm.png" alt="MDN"></a>
Example 3: Using the srcset attribute
The src attribute is a 1x candidate in user agents that support srcset.
<img src="mdn-logo-sm.png" alt="MDN" srcset="mdn-logo-HD.png 2x">
Example 4: Using the srcset and sizes attributes
The src attribute is ignored in user agents that support srcset when using 'w' descriptors. When the (min-width: 600px) media condition matches, the image will be 200px wide, otherwise it will be 50vw wide (50% of the viewport width).
<img src="clock-demo-thumb-200.png" alt="Clock" srcset="clock-demo-thumb-200.png 200w, clock-demo-thumb-400.png 400w" sizes="(min-width: 600px) 200px, 50vw">
Description
The HTML <img> element represents an image in the document.
Usage note: Browsers do not always display the image referenced by the element. This is the case for non-graphical browsers (including those used by people with vision impairments), if the user chooses not to display images, or if the browser cannot display the image because it is invalid or an unsupported type. In these cases, the browser may replace the image with the text defined in this element's alt attribute.
| Content categories | Flow content, phrasing content, embedded content, palpable content. If the element has a usemap attribute, it also is a part of the interactive content category. |
|---|---|
| Permitted content | None, it is an empty element. |
| Tag omission | Must have a start tag and must not have an end tag. |
| Permitted parent elements | Any element that accepts embedded content. |
| DOM interface | HTMLImageElement |
Browser Compatibility
| Feature | Chrome | Edge | Firefox (Gecko) | Internet Explorer | Opera | Safari (WebKit) |
|---|---|---|---|---|---|---|
| Basic support | (Yes) | (Yes) | (Yes) | (Yes) | (Yes) | (Yes) |
srcset |
34.0 | (Yes) | 32.0 (32.0)[2] | No support | 21 | 7.1 |
referrerpolicy |
46.0[1] | ? | 42.0 (42.0)[3] | ? | ? | ? |
| Feature | Android | Android Webview | Firefox Mobile (Gecko) | IE Phone | Opera Mobile | Safari Mobile | Chrome for Android |
|---|---|---|---|---|---|---|---|
| Basic support | (Yes) | (Yes) | (Yes) | (Yes) | (Yes) | (Yes) | (Yes) |
srcset |
? | 34.0 | No support | No support | 21 | iOS 8 | 34.0 |
referrerpolicy |
? | 46.0 [1] | 42.0 (42.0)[3] | ? | ? | ? | 46.0[1] |
[1] Implemented as referrerpolicy and behind a flag.
[2] Implemented behind a preference.
[3] Behind the network.http.enablePerElementReferrer preference, that default to false. From Firefox 42 to Firefox 44, the attribute was called referrer.
See Also
Specifications
| Specification | Status | Comment |
|---|---|---|
| Referrer Policy The definition of 'referrer attribute' in that specification. |
Working Draft | Added the referrerpolicy attribute. |
| WHATWG HTML Living Standard The definition of '<img>' in that specification. |
Living Standard | |
| HTML5 The definition of '<img>' in that specification. |
Recommendation | |
| HTML 4.01 Specification The definition of '<img>' in that specification. |
Recommendation |
Supported image formats
The HTML standard doesn't give a list of image formats that must be supported, so each user agent supports a different set of formats. Gecko supports:
Interaction with CSS
Regarding CSS, <img> is a replaced element. It has no baseline, so when images are used in an inline formatting context with vertical-align: baseline, the bottom of the image will be placed on the container's baseline.
Depending on its type, an image may have an intrinsic width and height. For some image types, however, intrinsic dimensions are not necessary. SVG images, for instance, have no intrinsic dimensions.
License
© 2016 Mozilla Contributors
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-us/docs/web/html/element/img