Posted By

wizard04 on 09/03/08

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css
html

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Last Edited at 09/03/08 04:18pm

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CSS Drop Shadow

/ Published in: CSS

Creates a drop shadow for a div. In IE I can't get `filter:alpha(opacity=__)` to work right, but it degrades gracefully without it so I left it out.

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****************
***** CSS ******
****************

.dropShadow {
	position:relative;
	z-index:1;
}

/*border boxes; inside-->outside*/
.dropShadow .drop1, .dropShadow .drop2, .dropShadow .drop3, 
.dropShadow .drop4, .dropShadow .drop5 {
	position:absolute;
	right:0;
	bottom:0;
	width:100%;
	height:100%;
}
.dropShadow .drop1 { opacity:0.5; }
.dropShadow .drop2 { opacity:0.4; }
.dropShadow .drop3 { opacity:0.3; }
.dropShadow .drop4 { opacity:0.2; }
.dropShadow .drop5 { opacity:0.1; }

.dropShadow.dropBR .drop1, .dropShadow.dropBR .drop2, .dropShadow.dropBR .drop3, 
.dropShadow.dropBR .drop4, .dropShadow.dropBR .drop5 {
	top:0; left:0;			/*shadow positioned bottom-right*/
}
.dropShadow.dropBL .drop1, .dropShadow.dropBL .drop2, .dropShadow.dropBL .drop3, 
.dropShadow.dropBL .drop4, .dropShadow.dropBL .drop5 {
	top:0; left:-16px;		/*shadow positioned bottom-left*/
}
.dropShadow.dropTR .drop1, .dropShadow.dropTR .drop2, .dropShadow.dropTR .drop3, 
.dropShadow.dropTR .drop4, .dropShadow.dropTR .drop5 {
	top:-16px; left:0;		/*shadow positioned top-right*/
}
.dropShadow.dropTL .drop1, .dropShadow.dropTL .drop2, .dropShadow.dropTL .drop3, 
.dropShadow.dropTL .drop4, .dropShadow.dropTL .drop5 {
	top:-16px; left:-16px;	/*shadow positioned top-left*/
}

/*top & bottom borders*/
.dropShadow .drop1 div, .dropShadow .drop2 div, .dropShadow .drop3 div, 
.dropShadow .drop4 div, .dropShadow .drop5 div {
	position:absolute;
	top:8px; right:0; bottom:0; left:8px;
	border-style:solid;
	border-color:#999999;
}
.dropShadow .drop1 div { margin:7px -1px -1px 7px; border-width:1px 0 1px 0; background-color:#999999; }
.dropShadow .drop2 div { margin:6px -2px -2px 6px; border-width:1px 0 1px 0; }
.dropShadow .drop3 div { margin:4px -4px -4px 4px; border-width:2px 0 2px 0; }
.dropShadow .drop4 div { margin:2px -6px -6px 2px; border-width:2px 0 2px 0; }
.dropShadow .drop5 div { margin:0 -8px -8px 0; border-width:2px 0 2px 0; }

/*left & right borders*/
.dropShadow .drop1 div div, .dropShadow .drop2 div div, .dropShadow .drop3 div div, 
.dropShadow .drop4 div div, .dropShadow .drop5 div div {
	position:absolute;
	top:0; right:0; bottom:0; left:0;
	margin:0;
}
.dropShadow .drop1 div div { border-width:0 1px 0 1px; }
.dropShadow .drop2 div div { border-width:0 1px 0 1px; }
.dropShadow .drop3 div div { border-width:0 2px 0 2px; }
.dropShadow .drop4 div div { border-width:0 2px 0 2px; }
.dropShadow .drop5 div div { border-width:0 2px 0 2px; }

/*content being shadowed*/
.dropShadow .dropContent {
	position:relative;
	z-index:1;
	background-color:white;
}

****************
***** HTML *****
****************

URL: http://test.dragonzreef.com/cssDropShadow.htm

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