JSFiddle - React, Tailwind, and code Playground

HTML

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<div class="box"></div>
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<div class="box"></div>
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CSS

.box { widtd: 250px; height: 100px; border: 2px solid red;  }

JavaScript

$.getScript('http://imakewebthings.com/jquery-waypoints/waypoints.min.js', function() {
    

    $('.box').waypoint(function() {
    
        $(this).css({
            borderColor: 'blue'
        });
        
    });
    
    
});