You can use transparent fixed floating <a> tags, such as:
<a style="display: scroll; position: fixed; top: 25px; left: 0px; width: 20px; height: 20px;" href="#"></a> <a style="display: scroll; position: fixed; top: 25px; right: 0px; width: 20px; height: 20px;" href="#"></a>
You can use the bottom attribute instead of top to place tags relative to the bottom of the window.
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