CSS Z-Index property

Code:



<style>



#one {

position:absolute;

height: 200px;

width: 200px;

background: red;

z-index: 102;

}

#two {

position:absolute;

height: 200px;

top: 30px;

left: 30px;

width: 200px;

background: yellow;

z-index: 103;

}

#three {

position:absolute;

height: 200px;

width: 200px;

top: 60px;

left: 60px;

background: black;

z-index: 100;

}

</style>







<div id="one"></div>

<div id="two"></div>

<div id="three"></div>