HTMLImageElement: x property

The read-only x property of the HTMLImageElement interface indicates the x-coordinate of the <img> element's left border edge relative to the root element's origin.

Value

An integer value indicating the distance in pixels from the left edge of the element's nearest root element to the left edge of the <img> element's border box. The nearest root element is the outermost <html> element that contains the image. If the image is in an <iframe>, its x is relative to that frame.

In the diagram below, the left border edge is the left edge of the blue padding area. So the value returned by x would be the distance from that point to the left edge of the content area.

Diagram showing the relationships between the various boxes associated with an element

Examples

The example below demonstrates the use of the HTMLImageElement properties x and y.

HTML

html
<img id="avatar" src="/shared-assets/images/examples/grapefruit-slice.jpg" />
<pre id="log"></pre>

JavaScript

The JavaScript code that fetches the image and looks up its x and y values is below.

js
const logBox = document.querySelector("pre");

const log = (msg) => {
  logBox.innerText += `${msg}\n`;
};

const image = document.getElementById("avatar");

log(`Image's global X: ${image.x}`);
log(`Image's global Y: ${image.y}`);

Finally, we can look up and display the values of the HTMLImageElement's x and y properties.

CSS

The CSS defining the image size and its position:

css
img {
  margin-left: 30px;
  margin-top: 20px;
  max-width: 4em;
}

Result

The resulting image looks like this:

Specifications

See also