The later test reqire Ahem font.
line-height: 0.68;
line-height: 1;
line-height: 1.12; A test, hightlight the below line in Firefox, IE and note that the hightlighted content is the same height at the line-height. The same result would be seen if the content was wrapped in a span which had a background color.
line-height: 1.17; This matches the below example with default line-height.
Default
line-height: 1.2;
line-height: 0.8;
line-height: 1; This matches the below example with default line-height in WebKit, IE8, IE9, IE10 preview 2 and Opera 11.60.
line-height: 1.2; This matches the below example with default line-height in Firefox.
Default