Setting height and width
width properties are used to set the height and width of an element.
width can be set to auto (this is default. Means that the browser calculates the height and width), or be specified in length values, like px, cm, etc., or in percent (%) of the containing block.
width properties do not include padding, borders, or margins; they set the height/width of the area inside the padding, border, and margin of the element!
max-width property is used to set the maximum width of an element.
max-width can be specified in length values, like px, cm, etc., or in percent (%) of the containing block, or set to none (this is default. Means that there is no maximum width).
The problem with the
<div> above occurs when the browser window is smaller than the width of the element (500px). The browser then adds a horizontal scrollbar to the page.
max-width instead, in this situation, will improve the browser's handling of small windows.
Tip: Drag the browser window to smaller than 500px wide, to see the difference between the two divs!
Note: The value of the
max-width property overrides
The following example shows a
<div> element with a height of 100 pixels and a max-width of 500 pixels: