JSFiddle - React, Tailwind, and code Playground

HTML

<input type="button" value="click" />

<div id="gbox_MyGrid">
    <div class="s-ico">
        <span>test</span>
    </div>
</div>

CSS

#gbox_MyGrid .s-ico span {
    display:none;
}

JavaScript

$('input').click(function() {
    $("#gbox_MyGrid .s-ico span").toggle();
});