HTML <output> for Attribute
Perform a calculation and show the result in an <output> element:
<input type="range" id="a" value="50">100
+<input type="number" id="b" value="50">
=<output name="x" for="a b"></output>
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The for attribute is supported in Firefox, Opera, Chrome, and Safari.
Note: The <output> tag is not supported in Internet Explorer.
Definition and Usage
The for attribute specifies the relationship between the result of the calculation, and the elements used in the calculation.
Differences Between HTML 4.01 and HTML5
The <output> tag is new in HTML5.
|element_id||Specifies a space separated list of ids of one or more elements that specifies the relationship between the result of the calculation, and the elements used in the calculation|
HTML <output> tag
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