JSFiddle - React, Tailwind, and code Playground

HTML

<tr class="_2gZhkbs8EeOxMedb03mTEg_process__idBrILtCEeOxMedb03mTEg_Row2">
    <td class="widget__2gZhkbs8EeOxMedb03mTEg_process__idBrILtCEeOxMedb03mTEg_SimpleButton1 _2gZhkbs8EeOxMedb03mTEg_process__idBrILtCEeOxMedb03mTEg_td_SimpleButton1" colspan="2" rowspan="1">
        <div id="SimpleButton1" class="bonita_form_button_entry widget__2gZhkbs8EeOxMedb03mTEg_process__idBrILtCEeOxMedb03mTEg__TtPJsLyyEeOFnpj_FuGt5w">
            <div class="bonita_form_button_entry input__2gZhkbs8EeOxMedb03mTEg_process__idBrILtCEeOxMedb03mTEg__TtPJsLyyEeOFnpj_FuGt5w createSpec">
                <button type="button" class="bonita_form_button input__2gZhkbs8EeOxMedb03mTEg_process__idBrILtCEeOxMedb03mTEg__TtPJsLyyEeOFnpj_FuGt5w createSpec">SimpleButton1</button>
            </div>
        </div>
    </td>
</tr>

JavaScript

$(document).ready(function () {
    $('.createSpec').find(':last').click(function () {
        alert("RUNNING");
    });
})