Edit fiddle - JSFiddle - React, Tailwind, and code Playground

JSFiddle - React, Tailwind, and code Playground

HTML

<table>
    <tr data-level="0"><td>Super 1</td></tr>
    <tr class="hide" data-level="1"><td>Sub 1</td></tr>
    <tr data-level="0"><td>Super 2</td></tr>
    <tr class="" data-level="1"><td>Sub 2</td></tr>
    <tr class="" data-level="1"><td>Sub 3</td></tr>
    <tr class="hide" data-level="1"><td>Sub 4</td></tr>
</table>

CSS

tr.hide {
    display: none;
}

tr.alternate {
    background: grey;
}

JavaScript

$('tr:not(.hide):odd').addClass('alternate')

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JSFiddle - React, Tailwind, and code Playground

HTML

CSS

JavaScript

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Use pre-released features

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