SO fiddle

Test Fiddle mainly for SO Questions

by Nick Craver

HTML

<link rel="stylesheet" href="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.4/themes/overcast/jquery-ui.css">
<div class="container">
    <div id="one" class="child">One</div>
    <div id="two" class="child">Two</div>
    <div id="three" class="child">Three</div>
    <div id="four" class="child">Four</div>
</div>

CSS

.container{
    height:40px;
    width:500px;
    border: solid 1px black;
}
.child{
    float:left;
    width: 25%;
    background: #eee;
}