HTML <canvas> height Attribute
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 |
Syntax
<canvas height="pixels">
Attribute Values
| Value | Description |
|---|---|
| pixels | Specifies the height of the canvas, in pixels (e.g. "100"). Default value 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>
Try it Yourself »
❮ HTML <canvas> tag
