Bootstrap 3 Skeleton
This is a simple Bootstrap skeleton. You can fork it to get a ready to use Bootstrap fiddle.
HTML
<script src="http://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/2.1.0/bootstrap.min.js"></script>
<div class="container">
<div class="row">
<form action="#">
<div class="form-group col-xs-3">
<label for="field1">This is large label for Field1</label>
<input type="text" class="form-control" id="field1" placeholder="field1">
</div>
<div class="form-group col-xs-3">
<label for="field2">Field2</label>
<input type="text" class="form-control" id="field2" placeholder="field2">
</div>
<div class="form-group col-xs-3">
<label for="field3">Field3</label>
<input type="text" class="form-control" id="field3" placeholder="field3">
</div>
<div class="form-group col-xs-3">
<label for="field4">Field4</label>
<input type="text" class="form-control" id="field4" placeholder="field4">
</div>
<div class="clearfix visible-xs"></div>
<div class="form-group col-xs-3">
<label for="field5">Field5</label>
<input type="text" class="form-control" id="field5" placeholder="field5">
</div>
<div class="form-group col-xs-3">
<label for="field5">Field6</label>
<input type="text" class="form-control" id="field6" placeholder="field6">
</div>
</form>
</div>
</div>
CSS
@import url('http://getbootstrap.com/dist/css/bootstrap.css');
JavaScript
$(function() {
var maximum = null;
$('label').each(function(){
var hvalue = $(this).height();
maximum = (hvalue > maximum) ? hvalue : maximum;
});
$('label').css('min-height',maximum+'px');
})