title: Scrollbars visible, can't scroll
body: <p>I have the following HTML (demo here: <a href="http://jsfiddle.net/49Phn/" rel="noreferrer">http://jsfiddle.net/49Phn/</a>) which has an inner DIV with an ID of <code>tabs</code>:</p>
  
  <pre><code>&lt;div data-role="page"&gt;
      &lt;div id="header"&gt;&lt;/div&gt;
      &lt;div id="content"&gt;
          &lt;div id="tabs"&gt;
              &lt;div id="j1"&gt;
                  &lt;div class="letter"&gt;
                      &lt;p&gt;Section 1&lt;/p&gt;
                  &lt;/div&gt;
              &lt;/div&gt;
              &lt;div id="j2"&gt;
                  &lt;div class="letter"&gt;
                      &lt;p&gt;Section 2&lt;/p&gt;
                  &lt;/div&gt;
              &lt;/div&gt;
              &lt;div id="j3"&gt;
                  &lt;div class="letter"&gt;
                      &lt;p&gt;Section 3&lt;/p&gt;
                  &lt;/div&gt;
              &lt;/div&gt;
              &lt;div id="j4"&gt;
                  &lt;div class="letter"&gt;
                      &lt;p&gt;Section 4&lt;/p&gt;
                  &lt;/div&gt;
              &lt;/div&gt;
          &lt;/div&gt;
      &lt;/div&gt;
      &lt;div id="popup-container"&gt;
          &lt;div id="popup"&gt;
              &lt;div id="pheader"&gt;
                  &lt;a id="close-popup"&gt;&lt;/a&gt;
              &lt;/div&gt;
          &lt;/div&gt;
      &lt;/div&gt;
  &lt;/div&gt;
  </code></pre>
  
  <p>And the following CSS (sorry it's so long):</p>
  
  <pre><code>/* http://meyerweb.com/eric/tools/css/reset/ 
     v2.0 | 20110126
     License: none (public domain)
  */
  
  @font-face {
      font-family: PhinsterFine;
      src: url('../fonts/PhinsterFine.ttf');
  }
  
  html, body, div, span, applet, object, iframe,
  h1, h2, h3, h4, h5, h6, p, blockquote, pre,
  a, abbr, acronym, address, big, cite, code,
  del, dfn, em, img, ins, kbd, q, s, samp,
  small, strike, strong, sub, sup, tt, var,
  b, u, i, center,
  dl, dt, dd, ol, ul, li,
  fieldset, form, label, legend,
  table, caption, tbody, tfoot, thead, tr, th, td,
  article, aside, canvas, details, embed, 
  figure, figcaption, footer, header, hgroup, 
  menu, nav, output, ruby, section, summary,
  time, mark, audio, video {
      margin: 0;
      padding: 0;
      border: 0;
      font-size: 100%;
      font: inherit;
      vertical-align: baseline;
      text-shadow: none;
      color: black;
      -webkit-touch-callout: none;
      -webkit-user-select: none;
      -khtml-user-select: none;
      -moz-user-select: none;
      -ms-user-select: none;
      user-select: none;
  }
  /* HTML5 display-role reset for older browsers */
  article, aside, details, figcaption, figure, 
  footer, header, hgroup, menu, nav, section {
      display: block;
  }
  body {
      line-height: 1;
  }
  ol, ul {
      list-style: none;
  }
  blockquote, q {
      quotes: none;
  }
  blockquote:before, blockquote:after,
  q:before, q:after {
      content: '';
      content: none;
  }
  table {
      border-collapse: collapse;
      border-spacing: 0;
  }
  
  .hub ui-page, .hub .ui-body-c,
  .ui-overlay-c ui-page, .ui-overlay-c .ui-body-c,
  .ui-mobile-viewport ui-page, .ui-overlay-c .ui-body-c {
      z-index: -2 !important;
  }
  
  /*----------------------------------- Crimson Tide - non-jQuery styles ------------------------------------*/
  
  .hub #content {
      z-index: -1;
  }
  
  .hub #header, .hub #content, .hub #popup-container {
      font-size: 1.3em;
      /* font-variant : small-caps; */
      position: absolute;
  }
  
  .hub #header {
      position: absolute;
      width: 100%;
      height: 40px;
      top: 0;
      background: #eee no-repeat 50% / 130px;
  }
  
  .hub #content {
      top: 40px;
      padding-top: 30px;
      bottom: 45px;
      overflow: auto;
      background: #fff;
      width: 100%;
  }
  
  .hub #popup-container {
      opacity: .95;
      display: none;
      top: 0;
      bottom: 0;
      left: 0;
      right: 0;
  }
  
  .hub #popup-container #popup {
      position: absolute;
      background: #fff;
      top: 30px;
      bottom: 30px;
      left: 10px;
      right: 10px;
  
      -webkit-border-radius: 7px;
      -moz-border-radius: 7px;
      border-radius: 7px;
  }
  
  .hub #popup-container #popup #header {
      position: inherit;
      width: 100%;
      height: 60px;
  
      background: #eeeeee; /* Old browsers */
      background: -moz-linear-gradient(top,  #eeeeee 0%, #333333 100%); /* FF3.6+ */
      background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,#eeeeee), color-stop(100%,#333333)); /* Chrome,Safari4+ */
      background: -webkit-linear-gradient(top,  #eeeeee 0%,#333333 100%); /* Chrome10+,Safari5.1+ */
      background: -o-linear-gradient(top,  #eeeeee 0%,#333333 100%); /* Opera 11.10+ */
      background: -ms-linear-gradient(top,  #eeeeee 0%,#333333 100%); /* IE10+ */
      background: linear-gradient(to bottom,  #eeeeee 0%,#333333 100%); /* W3C */
      filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#eeeeee', endColorstr='#333333',GradientType=0 ); /* IE6-9 */
  
      -webkit-border-top-left-radius: 7px;
      -webkit-border-top-right-radius: 7px;
      -moz-border-radius-topleft: 7px;
      -moz-border-radius-topright: 7px;
  
      border-top-left-radius: 7px;
      border-top-right-radius: 7px;
  }
  
  .hub #content #tabs {
      height: 100%;
      min-height: 400px;
      background: #f00;
      text-align: center;
  }
  
  .hub #content #tabs &gt; div {
      padding: 5px 20px 40px 20px;
      float: left;
      height: 50%;
      width: 50%;
      box-sizing: border-box;
  }
  
  .hub #content #tabs :active &gt; div {
      background: #fff;
  }
  
  .letter {
      background: #fff;
      box-shadow: 0 0 80px #A0A0A0;
      margin: 16px auto 0;
      padding: 10px;
      position: relative;
      width: 80%;
      max-width: 250px;
      height: 70%;
  }
  
  .letter:before, .letter:after {
      content: "";
      height: 98%;
      position: absolute;
      width: 100%;
      z-index: -1;
  }
  
  .letter:before {
      background: #baffc4;
      box-shadow: 0 0 8px rgba(0, 0, 0, .5);
      left: -5px;
      top: 4px;
  
      -webkit-transform: rotate(-1.5deg);
      -moz-transform: rotate(-1.5deg);
      -ms-transform: rotate(-1.5deg);
      -o-transform: rotate(-1.5deg);
      transform: rotate(-1.5deg);
  }
  
  .letter:after {
      background: #80FF93;
      box-shadow: 0 0 3px rgba(0, 0, 0, .2);
      right: -3px;
      top: 1px;
  
      -webkit-transform: rotate(1.4deg);
      -moz-transform: rotate(1.4deg);
      -ms-transform: rotate(1.4deg);
      -o-transform: rotate(1.4deg);
      transform: rotate(1.4deg);
  }
  
  .count {
      font-family: helvetica, san-serif;
      font-size: .7em;
      text-align: center;
      vertical-align: middle;
      line-height: 30px;
      position: absolute;
      left: 60%;
      top: 30%;
      background: #baffc4;
      border-radius: 50%;
      width: 30px;
      height: 30px;
      -webkit-box-shadow: 0 3px 8px rgba(0, 0, 0, .25);
      -moz-box-shadow: 0 3px 8px rgba(0, 0, 0, .25);
      box-shadow: 0 3px 8px rgba(0, 0, 0, .25);
  }
  
  .hub #content #tabs div h2 {
      text-align: center;
      bottom: 0;
      padding: 0 0 10px 0;
  }
  </code></pre>
  
  <p>My content container contains four boxes, which, if you shrink the window height - you'll see they're hidden which is the desired behaviour.</p>
  
  <p>However, I need this container div to scroll - and it shows the scroll bar (on Windows) - which looks round about the correct height, but isn't actually scrolling. Any idea?</p>
  
  <p>The reason it's bound to the screen edges is because it's a mobile app designed to run on multiple screen sizes.</p>