This is something I found out recently, and may be of interest to other developers.

Consider this HTML code:

<div id="mydiv">
     <div class="slab-wrapper">
         <div class="slab">


Consider this Mootools 1.24 javascript snippet:



Now you would expect <div class="slab"> to be selected, and you'd be right for Chrome, IE and other browsers, but Firefox throws a wrench in by apparently selecting the first element with a class with the word "slab" in it (in this case <div class="slab-wrapper">)

The workaround will be to use:



Good luck!

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