javascript - Wow.js Working on Images But Not Other Elements -

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from i've read, should possible place wow classes on elements divs , forms, far i've gotten work on img tags.

the below code works:

<img src='blah.jpg' class="wow fadeinup">

this code not work:

<div class="wow fadeinup">

i have proper css file , js file loaded , have made sure add doctype html tag.

is there i'm missing?


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