JSFiddle - React, Tailwind, and code Playground

HTML

<body>
    <a href=# " id="clickMe">Click Me to add a new Div</a>
    <div id="elementHolder">
        <div id="webThumb5">
            <p>Test1 <a href="# " class="del_button " role="button ">Delete</a></p>
        </div>
        <div id="webThumb6">
            <p>Test2 <a href="# " class="del_button " role="button ">Delete</a></p>
        </div>
        <div id="webThumb7">
            <p>Test3 <a href="# " class="del_button " role="button ">Delete</a></p>
        </div>
    </div>
    <div id="divTemplate" style="display:none ">
        <p>Test <a href="# " class="del_button " role="button ">Delete</a></p>
    </div>
</body>

CSS

#elementHolder div {
    border: 1px solid black;
    display:inline-block;
    padding: 0.5em;
    margin: 0.2em;
}

JavaScript

var counter = 100;
$(document).ready(function () {
    $("#elementHolder").on("click", "a.del_button", function (event) {
        event.preventDefault();
        var parentDiv = $(event.target).parent().parent();
        alert("Id: " + parentDiv.attr('id'));
    });
    $("#clickMe").click(function (event) {
        counter += 1;
        var newId = "webThumb" + counter;
        var newDiv = $("#divTemplate").clone(true, true);
        newDiv.attr("id", newId).prependTo("#elementHolder");
        newDiv.fadeIn(500);
    });
});