JSFiddle - React, Tailwind, and code Playground
HTML
<link rel="stylesheet" href="http://netdna.bootstrapcdn.com/twitter-bootstrap/2.1.0/css/bootstrap-combined.min.css">
<form>
<div class="row">
<fieldset class="form-inline">
<label class="control-label">A</label>
<input type="text" class="input-medium">
</fieldset>
</div><!-- end row -->
<div class="row">
<fieldset class="form-inline">
<label class="control-label">B</label>
<input type="text" class="input-mini" >
<label class="control-label">C</label>
<input type="text" class="input-mini" >
<label class="control-label">D</label>
<input type="text" class="input-mini" >
<label class="control-label">E</label>
<input type="text" class="input-mini" >
</fieldset>
</div><!-- end row -->
</form>
CSS
body{
margin-top:30px;
}