make elements above other in HTML

I am using one custom control (开发者_如何学运维jQuery cycle plugin, to be specific), and I also have a drop-down menu on my web page. The custom control appears to be above the drop-down menu, which doesn't suit me at all. How can I make my drop-down menu be above everything?

you can use z-index property. More information at http://www.w3.org/TR/CSS2/visuren.html#z-index

Keep in mind that z-index works only with positioned elements.

A good "how to use" article about z-index you can find here.