Two-column layout with sticky footer

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Main contents, Main contents, Main contents, Main contents, Main contents, Main contents, Main contents, Main contents, Main contents, Main contents, Main contents, Main contents, Main contents, Main contents, Main contents, Main contents, Main contents, Main contents, Main contents, Main contents

Main contents, Main contents, Main contents, Main contents, Main contents, Main contents, Main contents, Main contents, Main contents, Main contents, Main contents, Main contents, Main contents, Main contents, Main contents, Main contents, Main contents, Main contents, Main contents, Main contents

Main contents, Main contents, Main contents, Main contents, Main contents, Main contents, Main contents, Main contents, Main contents, Main contents, Main contents, Main contents, Main contents, Main contents, Main contents, Main contents, Main contents, Main contents, Main contents, Main contents