# HTML <canvas> height Attribute

HTML <canvas> tag

## Example

A <canvas> element with a height and width of 200 pixels:

<canvas id="myCanvas" width="200" height="200" style="border:1px solid">
Try it yourself »

More "Try it Yourself" examples below.

## Definition and Usage

The height attribute specifies the height of the <canvas> element, in pixels.

Tip: Use the width attribute to specify the width of the <canvas> element, in pixels.

Tip: Each time the height or width of a canvas is re-set, the canvas content will be cleared (see example at bottom of page).

Tip: Learn more about the <canvas> element in our HTML Canvas Tutorial.

## Browser Support

The numbers in the table specify the first browser version that fully supports the attribute.

Attribute |  |  |  |  |
--- | --- | --- | --- | --- | ---
height | 4.0 | 9.0 | 2.0 | 3.1 | 9.0

## Differences Between HTML 4.01 and HTML5

The <canvas> tag is new in HTML5.

## Syntax

<canvas height="pixels">

## Attribute Values

Value | Description
--- | ---
pixels | Specifies the height of the canvas, in pixels (e.g. "100"). Default height is "150"

## More Examples

## Example

Clear the canvas by setting the width or height attribute (using JavaScript):

<canvas id="myCanvas" width="200" height="200" style="border:1px solid"></canvas>
<script>
var c = document.getElementById("myCanvas");
var ctx = c.getContext("2d");
ctx.fillStyle = "#92B901";
ctx.fillRect(50, 50, 100, 100);
function clearCanvas() {
c.height = 300;
}
</script>
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HTML <canvas> tag

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