<input type='text' placeholder='I am a placeholder'/>
<div class='input-group'> <input id='input-1' type='text' placeholder='I am a placeholder'/> <label for='input-1'>Text field label</label></div>
<div class='input-group'>
<input id='input-1' type='text' placeholder='I am a placeholder'/>
<label for='input-1'>Text field label</label>
</div>
<div class='input-group'> <input id='input-1' type='text' placeholder='I am a placeholder'/> <label for='input-1' class='error'>Text field label</label> <label class='error'>This is an error message</label></div>
<label for='input-1' class='error'>Text field label</label>
<label class='error'>This is an error message</label>
