Written by How to display categories in Horizontal Drop Down Menu?
This can be achieved using CSS and Javasript.
<?php wp_list_categories(‘sort_column=name&sort_order=asc&style=list&children=true&hierarchical=true&title_li=0′); ?>
Use this code in your header.php file or anywhere else you want to display.
Then create a CSS file something like cssfile:
And now the main thing, the javascript. Use this jscript
Also, to activate it, change your theme’s <body> tag to <body onload=”mbSet(‘menu’);>
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