section.html

<!-- Copyright 2014 Google Inc. All rights reserved.

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

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distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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-->

<!--
    Sections auto-number themselves and their paragraphs. The chosen number can
    be overridden by setting the 'number' attribute. A paragraph can also be
    marked as a continuation of the previous paragraph (without its own number)
    by giving it a 'cont' class.

    Also recognizes attributes 'id' and 'title', but marking these as attributes
    cause problems for the ShadowDOM polyfill.
-->
<polymer-element name="cxx-section" constructor="CxxSectionElement" attributes="number">
  <template>
    <style>
      :host { display: block; }
      :host:target {background-color: inherit;}
      :host:target > section > h1 {background-color: #fed;}
      polyfill-next-selector { content: 'header > h1' }
      ::content h1 { display: inline; font-size: 100%; }
      header { font-weight: bold; margin-top: 20px; margin-bottom: 20px;
               page-break-inside: avoid; page-break-after: avoid; }
      header::after { clear:both; display: block; content: " "; height: 0 }
    </style>

    <section>
      <header><span class="section-number">{{sec_num}}</span> <content select="h1"></content> <span style="float:right"><a href="#{{id}}">[{{id}}]</a></span></header>
      <content></content>
    </section>
  </template>
  <script src="section.js"></script>
</polymer-element>