The cleanest way to fix this is to apply the vertical-align: top
property to you CSS rules:
#div1 div {
width:30px;height:30px;
border:blue 1px solid;
display:inline-block;
*display:inline;zoom:1;
margin:0px;outline:none;
vertical-align: top;
}
If you were to add content to your div
's, then using either line-height: 0
or font-size: 0
would cause problems with your text layout.
See fiddle: http://jsfiddle.net/audetwebdesign/eJqaZ/
This problem can arise when a browser is in "quirks" mode. In this example, changing the doctype from:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
to
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.0 Strict//EN">
will change how the browser deals with extra whitespace.
In quirks mode, the whitespace is ignored, but preserved in strict mode.
References:
https://developer.mozilla.org/en/Images,_Tables,_and_Mysterious_Gaps