Can You Use `object-fit` with Canvas Elements?

Does object-fit Work with Canvas Element?

The object-fit property is designed to control the scaling and positioning of an image or video within its container. However, its compatibility with canvas elements has been a topic of debate.

Can object-fit Be Applied to Canvas Elements?

Yes, object-fit can be applied to canvas elements. However, it only takes effect when there is a change in the aspect ratio of the canvas container, causing a distortion in the image or drawing.

Understanding How object-fit Works with Canvas

For a canvas element, object-fit behaves differently based on the following scenarios:

• When the container aspect ratio matches the canvas aspect ratio: No scaling or positioning changes occur.
• When the container aspect ratio differs from the canvas aspect ratio: object-fit becomes applicable. The canvas will be scaled and positioned within the container according to the specified value.

Example:

Consider the following CSS snippet:

<code class="css">canvas {
  width: 100px;
  height: 250px;
  border: 1px solid red;
  display: block;
}

.box {
  display: inline-block;
  border: 2px solid green;
}</code>

And the following HTML:

<code class="html"><div class="box">
  <canvas width="200" height="200"></canvas>
</div>
<div class="box">
  <canvas width="200" height="200" style="object-fit: contain;"></canvas>
</div>
<div class="box">
  <canvas width="200" height="200" style="object-fit: cover;"></canvas>
</div></code>

In this example, the first canvas will maintain its original aspect ratio, while the second will be scaled to fit within the container using the object-fit: contain value. The third canvas will be scaled to cover the container using object-fit: cover.

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