JSFiddle - React, Tailwind, and code Playground

HTML

<div id="productgrid2" style="border: 1px solid rgb(54, 57, 64); box-shadow: rgb(136, 136, 136) 7px 7px 5px; margin-bottom: 15px; height: 250px;" data-role="grid" class="k-grid k-widget">
        <div class="k-grid-header" style="padding-right: 14px;">
            <div class="k-grid-header-wrap" data-role="resizable">
                <table role="grid">
                    <colgroup>
                        <col style="width:170px" />
                            <col style="width:135px" />
                            <col style="width:120px" />
                            <col style="width:75px" />
                            <col style="width:55px" />
                            <col style="width:60px"/>
                            <col style="width:190px" />
                    </colgroup>
                    <thead role="rowgroup">
                        <tr role="row">
                            <th role="columnheader" data-field="rfi_name" data-title="RFI/Click2Connect" class="k-header" data-role="columnsorter"><a class="k-link" href="#">RFI/Click2Connect</a></th>
                            <th role="columnheader" data-field="SelectedOptions" data-title="Fulfillment" class="k-header k-with-icon k-filterable" data-role="columnsorter"><a class="k-grid-filter" href="#" tabindex="-1"><span class="k-icon k-filter" data-original-title="" title=""></span></a><a class="k-link" href="#">Fulfillment</a></th>
                            <th role="columnheader" data-field="InteractiveID" data-title="Interactive ID" class="k-header" data-role="columnsorter"><a class="k-link" href="#">Interactive ID</a></th>
                            <th role="columnheader" data-field="ISCI" data-title="ISCI" class="k-header" data-role="columnsorter"><a class="k-link" href="#">ISCI</a></th>
                            <th role="columnheader" data-field="IsAddressable" data-title="Addressable" class="k-header" data-role="columnsorter"><a class="k-link" href="#">Addressable</a></th>
  ...

JavaScript

$(function() {
    alert($("#productgrid2 div:nth-child(2)").height())
});