JSFiddle - React, Tailwind, and code Playground

HTML

<div class="item">
    <iframe src="http://player.vimeo.com/video/20183913?title=0&amp;byline=0&amp;portrait=0" width="612" height="344" frameborder="0"></iframe>
</div>

JavaScript

$("div.item iframe")
    .mouseover(function(){
        alert("Pause animation");
    })
    .mouseout(function(){
        alert("Play animation");
    });