JSFiddle - React, Tailwind, and code Playground

HTML

<div class="topper">
    <h2>Our Menu</h2>
      <div class="buttons"><button type="submit" value="vegon">Go Vegetarian</button></div>
      <div class="buttons"><button type="submit" value="restoreme">Restore Menu</button></div>
</div>

<div class="middle">
<li>Thai-style Halibut
 <ul class="menu_list">
  <li                 >coconut milk</li>
  <li class="fish"    >pan-fried halibut</li>
  <li                 >lemongrass broth</li>
  <li                 >vegetables</li>
  <li                 >Thai spices </li>
 </ul>
</li>
<li>Braised Delight
 <ul class="menu_list">
  <li class="meat"    >lamb shoulder</li>
  <li                 >cippolini onions</li>
  <li                 >carrots</li>
  <li                 >baby turnip</li>
  <li                 >braising jus</li>
 </ul>
</li>
<li>House Grilled Panini
 <ul class="menu_list">
  <li class="meat"    >prosciutto</li>
  <li                 >provolone</li>
  <li                 >avocado</li>
  <li                 >cherry tomatoes</li>
  <li                 >sourdough roll</li>
  <li                 >shoestring fries </li>
 </ul>
</li>
<li>House Slider
 <ul class="menu_list">
  <li                 >eggplant</li>
  <li                 >zucchini</li>
  <li class="hamburger">hamburger</li>
  <li                 >balsamic vinegar</li>
  <li                 >onion</li>
  <li                 >carrots</li>
  <li                 >multigrain roll</li>
  <li                 >goat cheese</li>
 </ul>
</li>   <li>Frittata
 <ul class="menu_list">
  <li class="meat"    >eggs</li>
  <li                 >Asiago cheese</li>
  <li                 >potatoes </li>
 </ul>
</li>
<li>Coconut Soup
 <ul class="menu_list">
  <li                 >coconut milk</li>
  <li class="meat"    >chicken</li>
  <li                 >vegetable broth</li>
 </ul>
</li>
<li>Soup Du Jour
 <ul class="menu_list">
  <li class="meat"    >grilled steak</li>
  <li                 >mushrooms</li>
  <li                 >vegetables</li>
  <li                ...

JavaScript

$(".buttons").click(function(){
    $("li.fish").hide();
});