JSFiddle - React, Tailwind, and code Playground

HTML

<link rel="stylesheet" href="http://twitter.github.com/bootstrap/assets/css/bootstrap.css">
<h4>label.span2, static width container</h4>
<div class="control-group span10 clearfix">
    <p class="pull-left">Payment Types</p>
    <div class="clearfix"></div>
    <div>
        <label class="checkbox span2">
            <input type="checkbox" value="option1"> Cash
        </label>
        <label class="checkbox span2">
            <input type="checkbox" value="option2"> Invoice
        </label>
        <label class="checkbox span2">
            <input type="checkbox" value="option3"> Discover
        </label>
        <label class="checkbox span2">
            <input type="checkbox" value="option3"> Financing
        </label>
        <label class="checkbox span2">
            <input type="checkbox" value="option1"> Check
        </label>
        <label class="checkbox span2">
            <input type="checkbox" value="option2"> American Express
        </label>
        <label class="checkbox span2">
            <input type="checkbox" value="option3"> MasterCard
        </label>
        <label class="checkbox span2">
            <input type="checkbox" value="option3"> Google Checkout
        </label>
        <label class="checkbox span2">
            <input type="checkbox" value="option1"> Traveler's Check
        </label>
        <label class="checkbox span2">
            <input type="checkbox" value="option2"> Diner's Club
        </label>
        <label class="checkbox span2">
            <input type="checkbox" value="option3"> Visa
        </label>
        <label class="checkbox span2">
            <input type="checkbox" value="option3"> Paypal
        </label>
    </div>
</div>

<h4>label.span2, fluid width container</h4>
<div class="control-group clearfix">
    <p class="pull-left">Payment Types</p>
    <div class="clearfix"></div>
    <div>
        <label class="checkbox span2">
            <input type="checkbox" value="option1"> Cash
        </label>
       ...

CSS

h4 {
    clear: both;
}

.control-group { 
    margin-bottom: 20px;
    margin-left: 20px;
}

.checkbox-columns {
    -moz-column-count: 4;
    -moz-column-gap: 20px;
    -webkit-column-count: 4;
    -webkit-column-gap: 20px;
    column-count: 4;
    column-gap: 20px;
}