JSFiddle - React, Tailwind, and code Playground

HTML

<!DOCTYPE html>
<html lang="en">

  <head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <script src="https://cdn.jsdelivr.net/npm/[email protected]/dist/jquery.slim.min.js" integrity="sha384-DfXdz2htPH0lsSSs5nCTpuj/zy4C+OGpamoFVy38MVBnE+IbbVYUew+OrCXaRkfj" crossorigin="anonymous"></script>
    <script src="https://cdn.jsdelivr.net/npm/[email protected]/dist/js/bootstrap.bundle.min.js" integrity="sha384-Fy6S3B9q64WdZWQUiU+q4/2Lc9npb8tCaSX9FK7E8HnRr0Jz8D6OP9dO5Vg3Q9ct" crossorigin="anonymous"></script>
    <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/[email protected]/dist/css/bootstrap.min.css">
    <title>About Chi's Cake</title>
  </head>

  <body>
    <header>
      <nav class="navbar navbar-expand-lg navbar-light bg-light">
        <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarNavDropdown" aria-controls="navbarNavDropdown" aria-expanded="false" aria-label="Toggle navigation">
          <span class="navbar-toggler-icon"></span>
        </button>
        <div class="collapse navbar-collapse" id="navbarNavDropdown">
          <a class="navbar-brand mr-auto" href="#">
            <h1>Cakes</h1>
          </a>
          <ul class="navbar-nav">
            <li class="nav-item active">
              <a class="nav-link" href="#">Home</a>
            </li>
            <li class="nav-item dropdown">
              <a class="nav-link dropdown-toggle" href="#" id="navbarDropdownMenuLink" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
                Products
              </a>
              <div class="dropdown-menu" aria-labelledby="navbarDropdownMenuLink">
                <a class="dropdown-item" href="#">Classic Yellow Cake</a>
                <a class="dropdown-item" href="#">Coconut Bundt Cake</a>
                <a class="dropdown-item" href="#">Cream Cheese Pound Cake</a>
            ...

JavaScript

window.onload = function() {
  if (window.jQuery) {
    $(document).click(function(event) {
      var clickover = $(event.target);
      var _opened = $(".navbar-collapse").hasClass("collapse show");
      if (_opened === true && (!clickover.hasClass("navbar-toggler") || !clickover.hasClass("navbar-toggler-icon"))) {
        $("button.navbar-toggler").click();
      }
    });
  }
}