<!doctype HTML>
<style>
.container {
position: absolute;
top: 0px;
left: 0px;
width: 303px;
height: 303px;
background-color: #ccc;
}
.child {
width: 10%;
height: 10%;
background-color: #333;
transform: translate(900%, 900%);
}
</style>
<div class="container">
<div class="child"></div>
</div>