JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://code.jquery.com/jquery-2.2.4.min.js"></script>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
<div class="input-group">
  <div class="input-group">
    <div class="input-group-addon">
      <input type="checkbox" />
    </div>
    <label class ="form-control">Option 1</label>
  </div>
  <div class="input-group">
    <div class="input-group-addon">
      <input type="checkbox" />
    </div>
    <label class ="form-control">Option 2</label>
  </div>
  <div class="input-group-btn">    
    <button class="btn">Help</button>
  </div>
</div>

CSS

.input-group {
    width: 100%;
}

.input-group-btn {
  height: 100%;
}

.btn {
  height: 100%;
}