Image width Property

Change the width of an image to 300px:

document.getElementById("myImg").width = "300";

Description

The width property sets or returns the value of the width attribute of an image.

The width attribute specifies the width of an image.

This property can also return the width of an image that has been styled with CSS (See More Examples).

Tip: Use the height property to set or return the value of the height attribute of an image.

Property
width	Yes	Yes	Yes	Yes	Yes

Return the width property:

imageObject.width

Set the width property:

imageObject.width = pixels

Value	Description
pixels	The width in pixels (e.g. width="100")

Return Value:	A Number, representing the width of the image, in pixels

Return the width of an image:

var x = document.getElementById("myImg").width;

Change the height and width of an image to 300px:

document.getElementById("myImg").height = "300";
document.getElementById("myImg").width = "300";

Return the width of an image that has been styled with CSS:

var x = document.getElementById("myImg").width;