JSFiddle - React, Tailwind, and code Playground

HTML

<div id="product8" class="product disabled">
 DIV 1
    <div class="icon" > icon 1 </div>
    <div class="content" >
        <div class="title" > 3 </div>
        <span class="price" > 4 </span>
        <div class="title owned" >
            107
        </div>
     </div>
</div>

JavaScript

'var doc = document.getElementById("product8");

'alert(doc.getElementsByClassName("title owned"));

e = document.getElementsByClassName("product disabled");
for(var i = 0; i < e.length; i++) {
    // Only if there is only single class
    'if(e[i].className == 'item') {
        // Do something with the element e[i]
    '    alert(e[i].className);
    '}
    alert(e[i].className);
}