HTML
<body>
<div id="wrapper">
<div id="wrapper_2">
<div id="child"> </div>
</div>
<div id="wrapper_2">
<div id="child"> </div>
</div>
<div id="wrapper_2">
<div id="child"> </div>
</div>
<div id="wrapper_2">
<div id="child"> </div>
</div>
</div>
</body>
CSS
#wrapper {
display:table;
width:100%;
}
#wrapper_2 {
display:inline-block;
width:25%; /* Number of element you want (here 100/4) */
}
#child {
display:block;
background-color:red;
width:80%; /* Size of the element (100% => full cell) */
margin: 0 auto; /* center the element in the table cell*/
}
JSFIDDLE
http://jsfiddle.net/hJPBz/