<!DOCTYPE html>
<html>

<head>
  <script data-require="jquery@*" data-semver="2.1.1" src="//cdnjs.cloudflare.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
  <script data-require="bootstrap@*" data-semver="3.1.1" src="//netdna.bootstrapcdn.com/bootstrap/3.1.1/js/bootstrap.min.js"></script>
  <link data-require="bootstrap-css@3.1.1" data-semver="3.1.1" rel="stylesheet" href="//netdna.bootstrapcdn.com/bootstrap/3.1.1/css/bootstrap.min.css" />
  <link rel="stylesheet" href="style.css" />
  <script src="script.js"></script>
  <style>
    .btn-group {
      width: 100%;
    }
    .btn-primary:first-child {
      width: 90%;
    }
    .btn-primary:last-child {
      width: 10%;
      padding: 10px;
    }
  </style>
</head>

<body>
  <div class="row">
    <div class="col-md-6">
      <div class="btn-group">
        <button type="button" class="btn btn-lg btn-primary">
          Select an Option
        </button>
        <button type="button" class="btn btn-lg btn-primary">
          <span class="caret"></span>
        </button>
      </div>
    </div>
    <div class="col-md-6">
      Other assets
    </div>
  </div>
</body>

</html>
// Code goes here

/* Styles go here */