[html] How can I position my div at the bottom of its container?

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 #container{width:100%; float:left; position:relative;}_x000D_
#copyright{position:absolute; bottom:0px; left:0px; background:#F00; width:100%;}_x000D_
#container{background:gray; height:100px;}
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<div id="container">_x000D_
  <!-- Other elements here -->_x000D_
  <div id="copyright">_x000D_
    Copyright Foo web designs_x000D_
  </div>_x000D_
</div>
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<div id="container">_x000D_
  <!-- Other elements here -->_x000D_
  <div id="copyright">_x000D_
    Copyright Foo web designs_x000D_
  </div>_x000D_
</div>
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