JSFiddle - React, Tailwind, and code Playground

HTML

<div  class='separator'><a href="https://charts.mql5.com/7/444/gbpusd-m15-hf-markets-ltd.png"><img src='https://charts.mql5.com/7/444/gbpusd-m15-hf-markets-ltd.png'/></a></div><hr>
<div  class='sss'><a href="https://charts.mql5.com/7/444/gbpusd-m15-hf-markets-ltd.png"><img src='https://charts.mql5.com/7/444/gbpusd-m15-hf-markets-ltd.png'/></a></div>

JavaScript

var items = document.querySelectorAll("div.separator img");
for (var i = items.length; i--;) {
    var img = items[i];
    img.src = img.src.replace(/.*?:\/\//g, "");
    img.src='https://images.weserv.nl?url='+img.src+'&w=120';
}