For CSS background-images

.yourselector {
       width:200px;
       height:100px;
       background: url(/folder/yourimage.png) no-repeat;
       _background:none;
       _filter:progid:DXImageTransform.Microsoft.AlphaImageLoader(src='/folder/yourimage.png',sizingMethod='crop');
}

Cannot be used with repeating, needs fixed with and height.

For inline HTML images

img, .png {
       position: relative;
       behavior: expression((this.runtimeStyle.behavior="none")&&(this.pngSet?this.pngSet=true:(this.nodeName == "IMG" && this.src.toLowerCase().indexOf('.png')>-1?(this.runtimeStyle.backgroundImage = "none",
       this.runtimeStyle.filter = "progid:DXImageTransform.Microsoft.AlphaImageLoader(src='" + this.src + "', sizingMethod='image')",
       this.src = "images/transparent.gif"):(this.origBg = this.origBg? this.origBg :this.currentStyle.backgroundImage.toString().replace('url("','').replace('")',''),
       this.runtimeStyle.filter = "progid:DXImageTransform.Microsoft.AlphaImageLoader(src='" + this.origBg + "', sizingMethod='crop')",
       this.runtimeStyle.backgroundImage = "none")),this.pngSet=true));
}

This requires a 1x1px transparent GIF image

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As in, the game PICROSS3D.

CSS3 Technique

Button Button Button

.btn {
  color: white;
  font-family: Helvetica, Arial, Sans-Serif;
  font-size: 20px;
  text-decoration: none;
  text-shadow: -1px -1px 1px #616161;
  position: relative;
  padding: 15px 30px;
  -webkit-box-shadow: 5px 5px 0 #666;
  -moz-box-shadow: 5px 5px 0 #666;
  -webkit-transition: all 0.3s ease;
  -moz-transition: all 0.3s ease;
  margin: 0 10px 0 0;
}

.btn:hover {
  -webkit-box-shadow: 0px 0px 0 #666;
  -moz-box-shadow: 0px 0px 0 #666;
  top: 5px;
  left: 5px;
}

jQuery Technique

Smoother, but more markup and CSS needed.

<div class="rela">
  <a class="btn green btn1" href="index.html">Jack</a>
  <span class="shadow"></span>
</div>

.rela {
	display: block;
	width: 96px;
	height: 56px;
	position: relative;
	margin: 10px;
}
.btn {
	display: block;
	line-height: 56px;
	text-align: center;
	color: white;
	font-family: Helvetica, Arial, Sans-Serif;
	font-size: 20px;
	text-decoration:none;
	text-shadow: -1px -1px 1px #616161;
	position: relative;
}
.shadow {
	position: absolute;
	top:5px;
	left: 5px;
	background: #666;
	z-index: -1;
	width: 100%;
	height: 100%;
}

$(".btn").hover(function(){
	$(this).stop().animate({ 
		top: "5",
		left: "5"
	}, 100 );
},
function(){
	$(this).stop().animate({ 
		top: 0,
		left: 0
	}, 100 );
});

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Demo

View Demo   Download Files

HTML

<a class=”GlobalOrangeButton” href=”http://yourwebsite.com”><span>So Neat!</span></a>

CSS

a.GlobalOrangeButton span {
  background: transparent url(’http://media-sprout.com/tutorials/web/CSSSprite-SlideButton/images/button_left_orange.png’) no-repeat 0 0;
  display: block;
   line-height: 22px;
  padding: 7px 0 5px 18px;
  color: #fff;
}

a.GlobalOrangeButton {
  background: transparent url(’http://media-sprout.com/tutorials/web/CSSSprit-SlideButton/images/button_right_orange.png’) no-repeat top right;
  display: block;
  float: left;
  height: 34px;
  margin-right: 6px;
  padding-right: 20px;
  text-decoration: none;
  font-family: Arial, Helvetica, sans-serif;
  font-size:12px;
  font-weight:bold;
}

a.GlobalOrangeButton:hover span {
  background-position: 0 -34px; color: #fff;
}

a.GlobalOrangeButton:hover {
background-position: right -34px;
}

Reference URL

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ul.box {
position: relative;
z-index: 1; /* prevent shadows falling behind containers with backgrounds */
overflow: hidden;
list-style: none;
margin: 0;
padding: 0; }

ul.box li {
position: relative;
float: left;
width: 250px;
height: 150px;
padding: 0;
border: 1px solid #efefef;
margin: 0 30px 30px 0;
background: #fff;
-webkit-box-shadow: 0 1px 4px rgba(0, 0, 0, 0.27), 0 0 40px rgba(0, 0, 0, 0.06) inset;
-moz-box-shadow: 0 1px 4px rgba(0, 0, 0, 0.27), 0 0 40px rgba(0, 0, 0, 0.06) inset; 
box-shadow: 0 1px 4px rgba(0, 0, 0, 0.27), 0 0 40px rgba(0, 0, 0, 0.06) inset; }

ul.box li:before,
ul.box li:after {
content: '';
z-index: -1;
position: absolute;
left: 10px;
bottom: 10px;
width: 70%;
max-width: 300px; /* avoid rotation causing ugly appearance at large container widths */
max-height: 100px;
height: 55%;
-webkit-box-shadow: 0 8px 16px rgba(0, 0, 0, 0.3);
-moz-box-shadow: 0 8px 16px rgba(0, 0, 0, 0.3);
box-shadow: 0 8px 16px rgba(0, 0, 0, 0.3);
-webkit-transform: skew(-15deg) rotate(-6deg);
-moz-transform: skew(-15deg) rotate(-6deg);
-ms-transform: skew(-15deg) rotate(-6deg);
-o-transform: skew(-15deg) rotate(-6deg);
transform: skew(-15deg) rotate(-6deg); }

ul.box li:after {
left: auto;
right: 10px;
-webkit-transform: skew(15deg) rotate(6deg);
-moz-transform: skew(15deg) rotate(6deg);
-ms-transform: skew(15deg) rotate(6deg);
-o-transform: skew(15deg) rotate(6deg);
transform: skew(15deg) rotate(6deg); }

Be careful that these boxes aren't sitting within another element that has a background, otherwise the negative z-index values (required for this to work) will force the shadows underneath that and not show up.

Reference URL

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img {
       -ms-interpolation-mode: bicubic;
}

If you scale down an image with width and/or height attributes, it's going to look terrible in IE unless you use this.

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<section class="fieldset">
 <h1>This is not a fieldset</h1>
 <p>Booyah!</p>
</section>

.fieldset {
  position: relative;
  border: 1px solid #ddd;
  padding: 10px;
}

.fieldset h1 {
  position: absolute;
  top: 0;
  font-size: 18px;
  line-height: 1;
  margin: -9px 0 0; /* half of font-size */
  background: #fff;
  padding: 0 3px;
}

Reference URL

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 nO3Wp/3fEV5a+4wz//6qy8JxjZsmxxy5+4w9CDNJY09T072iKG0EnOS0arEYgXqYnXcYHwjTtUNAcMelOd4xpkoqiTYICWFq0JSiPfPDQdnt+4/wuqcXY47QILbgAAAABJRU5ErkJggg==);

Reference URL

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