Flexible Box Model to both vertically and horizontally center the text within the circle in css3

<div class="box">
       <div>Satish</div>
   </div>

<style>
.box{height: 100px; width: 100px;color: #fff;border-radius: 50px;display: -moz-box;display: -webkit-box;display: box;-moz-box-orient: horizontal;-webkit-box-orient: horizontal;box-orient: horizontal;-moz-box-pack: center;-moz-box-align: center;-webkit-box-pack: center;-webkit-box-align: center;box-pack: center;box-align: center;}
</style>