   .sublist2 paper-item {
      padding-left: 50px;
    }
  </style>
</head>
<body unresolved>
  <div class="horizontal-section-container">
    <div>
      <h4>Standard</h4>
      <div class="horizontal-section">
        <paper-menu>
          <paper-item>Inbox</paper-item>
          <paper-item>Starred</paper-item>
          <paper-item>Sent mail</paper-item>
          <paper-item>Drafts</paper-item>
        </paper-menu>
      </div>
    </div>

    <div>
      <h4>Pre-selected</h4>
      <div class="hori