JSFiddle - React, Tailwind, and code Playground

HTML

<div class="filter-panel filter--property facet--property" data-filter-type="value-list" data-field-name="f">
   <div class="filter-panel--flyout" style="border:none;"><div id="label-it" class="label-it"><label class="filter-panel--title"><h3>Filter Group 1</h3></label></div>
   <div class="filter-panel--content" id="FilterGroup1">
      <ul class="filter-panel--option-list" style="list-style-type:none;">
         <li class="filter-panel--option">
            <div class="option--container" style="display:block;">
            <span class="filter-panel--checkbox"><input type="checkbox" value="603"><span class="checkbox--state">&nbsp;</span>
            </span>
            <label>Filter 1</label>
         </div>
         </li>
         <li class="filter-panel--option">
            <div class="option--container" style="display:block;">
            <span class="filter-panel--checkbox"><input type="checkbox" value="613"><span class="checkbox--state">&nbsp;</span>
         </span>
             <label>Filter 2</label>
         </div>
         </li>
         </ul>
         </div>
         </div>
         <div class="filter-panel filter--property facet--property" data-filter-type="value-list" data-field-name="f">
   <div class="filter-panel--flyout" style="border:none;"><div id="label-it" class="label-it"><label class="filter-panel--title"><h3>Filter Group 2</h3></label></div>
   <div class="filter-panel--content" id="FilterGroup2">
      <ul class="filter-panel--option-list" style="list-style-type:none;">
         <li class="filter-panel--option">
            <div class="option--container" style="display:block;">
            <span class="filter-panel--checkbox"><input type="checkbox" value="603"><span class="checkbox--state">&nbsp;</span>
            </span>
            <label>Filter 3</label>
         </div>
         </li>
         <li class="filter-panel--option">
            <div class="option--container" style="display:block;">
            <span...

JavaScript

$(document).ready(function () {
	  sessionStorage.getItem("filterstate");
    if (sessionStorage.getItem("filterstate"))
    {
        $("#FilterGroup1").css("display", sessionStorage.getItem("filterstate"));
    }
});


$('.label-it').click(function() {
  $(this).closest(".filter-panel--flyout").find(".filter-panel--content div").toggle(350)
sessionStorage.setItem("filterstate", $("#FilterGroup1").css("display"));
});