JSFiddle - React, Tailwind, and code Playground

HTML

<div contenteditable="true">
    <input type="text" />
</div>

JavaScript

/*
// with jQuery

$("div[contenteditable='true'] input").on("mousedown", function(e) {
    $(this).focus();
});
*/

// without jQuery
document.querySelector("div[contenteditable='true'] input").onmousedown = function() {
    this.focus();
}