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

CSS

.box {
   border: 1px solid red;
}
.box:last-child {
   border: none;
}