The CSS width property is used to set the width of the content area of an element.
It does not include padding borders or margins. It sets width of the area inside the padding, border, and margin of the element.
CSS width values
CSS Width Example: width in pxTest it Now
The height and width of this paragraph is 150px.
This is a paragraph.
CSS Width Example: width in %
The percent width is a measurement unit for the containing block. It is great for images.Test it Now
Note: You can also use the "min-width" and "max-width" property to control the size of image.