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How to Change the Canvas Size In Html?

2 minutes read

To change the canvas size in HTML, you can use the width and height attributes within the element. These attributes specify the width and height of the canvas, allowing you to set the desired dimensions for your canvas. Simply provide the desired width and height values in pixels, for example:



This will create a canvas element with a width of 800 pixels and a height of 600 pixels. You can adjust these values to fit your specific needs and design requirements. Additionally, you can also use CSS to style the canvas and set its size through styles such as width and height.


What are the common canvas sizes in html?

The most common canvas sizes in HTML are:

  1. 300 x 250 pixels (medium rectangle)
  2. 728 x 90 pixels (leaderboard)
  3. 160 x 600 pixels (wide skyscraper)
  4. 336 x 280 pixels (large rectangle)
  5. 300 x 600 pixels (half page)
  6. 320 x 50 pixels (mobile leaderboard)
  7. 970 x 250 pixels (billboard)
  8. 970 x 90 pixels (large leaderboard)


How to set canvas size in html?

To set the size of a canvas in HTML, you can use the "width" and "height" attributes within the element. Here's an example:

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<canvas id="myCanvas" width="500" height="300"></canvas>


In this example, the canvas element with an id of "myCanvas" will have a width of 500 pixels and a height of 300 pixels. You can adjust the values of the width and height attributes to set the desired size for your canvas.


How to make canvas full screen in html?

To make a canvas full screen in HTML, you can use JavaScript to set the width and height of the canvas element equal to the width and height of the window. Here is an example code snippet that demonstrates how to achieve this:

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<!DOCTYPE html>
<html>
<head>
  <title>Full Screen Canvas</title>
  <style>
    body {
      margin: 0;
      overflow: hidden;
    }

    canvas {
      display: block;
    }
  </style>
</head>
<body>
  <canvas id="myCanvas"></canvas>

  <script>
    const canvas = document.getElementById('myCanvas');
    const ctx = canvas.getContext('2d');

    canvas.width = window.innerWidth;
    canvas.height = window.innerHeight;

    // Your drawing code goes here
  </script>
</body>
</html>


In this code snippet, we first create a canvas element with the ID "myCanvas". We then use JavaScript to set the width and height of the canvas element equal to the width and height of the window using window.innerWidth and window.innerHeight.


You can then add your drawing code between the <script> tags to draw on the canvas. This will make the canvas full screen and responsive to the size of the window.

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