A Pen by patrickkunka.

index.html

<div id="Awesome" class="anim750">
	
  <div class="reveal circle_wrapper">
		<div class="circle">Hello!</div>
	</div>
						
	<div class="sticky anim750">
		<div class="front circle_wrapper anim750">
			<div class="circle anim750"></div>
	  </div>
	</div>
	
  <h4>Peel Me!</h4>
						
  <div class="sticky anim750">
		<div class="back circle_wrapper anim750">
			<div class="circle anim750"></div>
		</div>
	</div>
						
</div>

Pure-CSS-Peeling-Sticky.markdown

Pure CSS Peeling Sticky

Another experiment into CSS circles I built for a feature on the upcoming www.barrelny.com redesign.

The sticky is made from two seperate circles (front and back), which are moved and masked inversely on :hover (by the circle wrapper elements). A rotation is also applied to mimic realistic motion. Gradients are applied to the front and back to give the illusion of depth.

A Pen by patrickkunka on CodePen.

License.

style.css

.anim750{
  transition: all 750ms ease-in-out;
}

#Awesome{
	position: relative;
	width: 180px;
	height: 180px;
	margin: 0 auto;
  
  backface-visibility: hidden;
}

#Awesome .sticky{
	transform: rotate(45deg);
}

#Awesome:hover .sticky{
	transform: rotate(10deg);
}

#Awesome .sticky{
	position: absolute;
	top: 0;
	left: 0;
	width:180px;
	height: 180px;
}

#Awesome .reveal .circle{
	box-shadow: 0 1px 0px rgba(0,0,0,.15);
  
  font-family: 'helvetica neue', arial;
  font-weight: 200;
  line-height: 140px;
  text-align: center;
  
  cursor: pointer;
}

#Awesome .reveal .circle{
	background: #fafafa;
}

#Awesome .circle_wrapper{
	position: absolute;
	width: 180px;
	height: 180px;
	left: 0px;
	top: 0px;
	overflow: hidden;
}

#Awesome .circle{
	position: absolute;
	width: 140px;
	height:  140px;
	margin: 20px;
	
	border-radius: 999px;
}

#Awesome .back{
	height: 10px;
	top: 30px;
}

#Awesome:hover .back{
	height: 90px;
	top: 110px;
}

#Awesome .back .circle{
	margin-top: -130px;
	background-color: #fbec3f;

	background-image: -webkit-linear-gradient(bottom, rgba(251,236,63,.0), rgba(255,255,255,.8));
}

#Awesome:hover .back .circle{
	margin-top: -50px;
}

#Awesome .front{
	height: 150px;
	bottom: 0;
	top: auto;
	
	-webkit-box-shadow: 0 -140px 20px -140px rgba(0,0,0,.3);
}

#Awesome:hover .front{
	height: 70px;
	
	-webkit-box-shadow: 0 -60px 10px -60px rgba(0,0,0,.1);
}

#Awesome .front .circle{
	margin-top: -10px;
	background: #fbec3f;

	background-image: -webkit-linear-gradient(bottom, rgba(251,236,63,.0) 75%, #f7bb37 95%);
  background-image: -moz-linear-gradient(bottom, rgba(251,236,63,.0) 75%, #f7bb37 95%);
  background-image: linear-gradient(bottom, rgba(251,236,63,.0) 75%, #f7bb37 95%);
}

#Awesome h4{
  font-family: 'helvetica neue', arial;
  font-weight: 200;
  text-align: center;
	position: absolute;
	width: 180px;
	height: 140px;
  line-height: 140px;
	
	transition: opacity 50ms linear 400ms;
}

#Awesome:hover h4{
	opacity: 0;
	
	transition: opacity 50ms linear 300ms;
}

#Awesome:hover .front .circle{
	margin-top: -90px;
	background-color: #e2d439;
	background-position: 0 100px;
}