Please suggest how to overcome the warning while validation "WARNING: CSS selector specifies absolute position." in ePub 2 fixed layout.
Most probably it is a USAGE message rather than a WARNING. EPUB spec forbid absolutely positioned elements for non-FXL documents. Check CSS 2.1 - http://www.idpf.org/epub/301/spec/epub-contentdocs.html#sec-css-2.1
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