SO fiddle

Test Fiddle mainly for SO Questions

HTML

<table><tr><td>
<div class="randomnumber aaa">1</div>
<div class="randomnumber bbb">2</div>
<div class="randomnumber ccc">3</div>
<div class="randomnumber ddd">4</div>
<div class="randomnumber eee">5</div>
<div class="randomnumber fff">6</div>
<div class="randomnumber ggg">7</div>
<div class="randomnumber hhh">8</div>
<div class="randomnumber iii">9</div>
<div class="randomnumber jjj">0</div>
</td><tr></table>

CSS

table {width:300px;
height:300px;
margin-top:100px;
margin-left:100px;}

td {
    padding:150px;
    border:solid 1px;
}

.randomnumber {position:absolute; padding:10px;}

.aaa {background:#aaa;}
.bbb {background:#bbb;}
.ccc {background:#ccc;}
.ddd {background:#ddd;}
.eee {background:#eee;}
.fff {background:#f0f;}
.ggg {background:#d1d1d1;}
.hhh {background:#e1e1e1;}
.iii {background:#f00;}
.jjj {background:#0ff;}

JavaScript

$(".randomnumber").each(function () {
    var randomtop = Math.floor(Math.random() * 101);
    var randomleft = Math.floor(Math.random() * 101);
    var randomzindex = Math.floor(Math.random() * 101);
    $(this).css({
        "margin-top": randomtop,
        "margin-left": randomleft,
        "z-index": randomzindex
    });
});