app/views/device/lookup.html.erb
<div class="container">
<h1>Load your calibration</h1>
<p>Use the code which came with your precalibrated spectrometer.</p>
<form action="/device/claim" class="form">
<input style="font-size:1.4em;height:1.4em;" placeholder="key" type="text" name="key" />
<br />
<button class="btn-large btn-primary" type="submit">Claim</button>
</form>
</div>