CSS: make dropdown submenu appear below parent <ul> <li>

I am trying to build a CSS dropdown menu. The problem is that all child nodes in the ul li tree appear on the same row, instead of below the parent. How do I make the subcategories appear BELOW the parent ?


Add display:block; float: left;position: relative; on the li to establish a containing block and then position:absolute; top:100%; left:0; on the sub-menu ul to position it with respect to its containing block.

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Define macro expected expression issues

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