JSFiddle - React, Tailwind, and code Playground

HTML

<div class="container">
    #X
</div>

JavaScript

(
    function ($)
    {
        /* Define the container */
        var $div = $('div');
        /* Define the images */
        var $img = $div.find ('img');
        /* As you can see there images move in random intervals, defined here */
        var intervals = [2000, 2500, 3000, 3500, 4000];
        /* Also the animation effects */
        var effects = ['easeInOutQuad'];
        
        // If you want more effects, just cut and paste this
        //,'swing','easeInQuad','easeOutQuad','easeInOutQuad','easeInCubic','easeOutCubic','easeInOutCubic','easeInQuart','easeOutQuart','easeInOutQuart','easeInQuint','easeOutQuint','easeInOutQuint','easeInSine','easeOutSine','easeInOutSine','easeInExpo','easeOutExpo','easeInOutExpo','easeInCirc','easeOutCirc','easeInOutCirc','easeInElastic','easeOutElastic','easeInOutElastic','easeInBack','easeOutBack','easeInOutBack','easeInBounce','easeOutBounce','easeInOutBounce'];

        /*
            A function to calculate the position of the elements
            This way we can manipulate them all at once
        */
        function calibrate (c /* container */, e /* element */)
        {
            /*  images can't go out of the box more than 50% */
            return Math.random () * (c - e / 2);
        }

        /* Animation image, takes the element */
        function animate ($this)
        {
            /* Calculate the new offset */
            var offset = {};

            offset.top = calibrate ($div.height (), $this.height ());
            offset.left = calibrate ($div.width (), $this.width ());

            /* Get a random interval */
            var interval = intervals[Math.random () * intervals.length | 0];
            /* Get a random effect to animate */
            var effect = effects[Math.random () * effects.length | 0];

            /*
                Animate the sucka
                The last argument (function) calls this function again, so it keeps on repeating
            */
            $this.animate...