This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.
The content attribute specifies the value of a metadata name defined by the <meta> name attribute. It takes a string as its value, and the expected syntax varies depending on the name value used.
The types of values that a content attribute accepts depends on the name value. For details on specific formats and types, see the <meta> name attribute page.
The following <meta> tag uses name=description to set a "meta description" for a document. The content attribute provides the value for the metadata:
<meta name="description" content="The HTML reference describes all elements and attributes of HTML, including global attributes that apply to all elements." />
| Specification |
|---|
| HTML> # attr-meta-content> |
| Desktop | Mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Opera | Safari | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | WebView Android | WebView on iOS | |
content |
1 | 12 | 1 | ≤12.1 | ≤4 | 18 | 4 | ≤12.1 | ≤3.2 | 1.0 | 4.4 | ≤3.2 |
<meta> name attribute
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https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Attributes/content