Compared to display: inline, the major difference is that display: inline-block allows you to set a width and height on the element.
Compared to display: block, the major difference is that display: inline-block does not add a line-break after the element, so the element can sit next to other elements.
The following example shows the different behavior of display: inline, display: inline-block and display: block:
One common use for display: inline-block is to display list items horizontally instead of vertically.
The following example creates horizontal navigation links: