CSS DIV boxes with gradient shadow

This example integrates javascript with CSS to create a gradient shadow effect for containers or elements on your page with a customizable shadow depth and coloring. To enable the effect; simply add the "shadow" class name tags to your desired element.

[ download files ] - [ demo ]



CSS Code

<style type="text/css">

.shadow{ border:1px solid silver; font:10pt arial; position:relative; display:inline; background:white; z-index:100 }

.shadow_inner{ overflow:hidden; position:absolute; top: -1000px; filter:alpha(Opacity=10); /*modify to change the shade solidity/opacity, same as below*/ opacity:0.1; /*firefox 1.5 opacity*/ -moz-opacity:0.1; /*mozilla opacity*/ -khtml-opacity:0.1; /*opacity*/ z-index:10 }

</style>

<script type="text/javascript">

var gradientshadow={} gradientshadow.depth=6 //Depth of shadow in pixels gradientshadow.containers=[]
gradientshadow.create=function(){ var a = document.all ? document.all : document.getElementsByTagName('*') for (var i = 0;i < a.length;i++) { if (a[i].className == "shadow") { for (var x=0; x<gradientshadow.depth; x++){ var newSd = document.createElement("DIV") newSd.className = "shadow_inner" newSd.id="shadow"+gradientshadow.containers.length+"_"+x //Each shadow DIV has an id of "shadowL_X" (L=index of target element, X=index of shadow (depth) if (a[i].getAttribute("rel")) newSd.style.background = a[i].getAttribute("rel") else newSd.style.background = "black" //default shadow color if none specified document.body.appendChild(newSd) } gradientshadow.containers[gradientshadow.containers.length]=a[i] } } gradientshadow.position() window.onresize=function(){ gradientshadow.position() } }

gradientshadow.position=function(){ if (gradientshadow.containers.length>0){ for (var i=0; i<gradientshadow.containers.length; i++){ for (var x=0; x<gradientshadow.depth; x++){ var shadowdiv=document.getElementById("shadow"+i+"_"+x) shadowdiv.style.width = gradientshadow.containers[i].offsetWidth + "px" shadowdiv.style.height = gradientshadow.containers[i].offsetHeight + "px" shadowdiv.style.left = gradientshadow.containers[i].offsetLeft + x + "px" shadowdiv.style.top = gradientshadow.containers[i].offsetTop + x + "px" } } } }

if (window.addEventListener) window.addEventListener("load", gradientshadow.create, false) else if (window.attachEvent) window.attachEvent("onload", gradientshadow.create) else if (document.getElementById) window.onload=gradientshadow.create

</script>

HTML Code

<p class="shadow" style="display: block" rel="red">This is some paragraph.<br />Set display="block" inside it.<br />This is some paragraph.</p>

<img src="http://img201.imageshack.us/img201/7907/streetkz4.gif" class="shadow" rel="blue" /><br />

<p><a href="http://www.blogspotvision.com" class="shadow" rel="green">Some link</a></p>