<!--

Forum question answer only:

https://www.sitepoint.com/community/t/help-show-hide-div-with-css-issue/470847

-->
<button id="filter-toggle">SHOW FILTERS</button>

<div class="category_filter_box categoryfilter asp_sett_scroll">
  <p>Filter options:</p>
  <p>SOME COPY WILL BE HERE THAT IS TIED TO THE TOGGLE BUTTON</p>
</div>

/* Initially hide the div */
.category_filter_box.categoryfilter.asp_sett_scroll {
  display: none;
  border: 0px solid #ccc;
  padding: 10px;
  margin-top: 10px;
  max-height: 200px;
  overflow-y: auto;
}

/* Style the button (optional) */
button {
  position: relative;
  padding: 10px 30px 10px 20px;
  background-color: #4caf50; /* Green */
  border: none;
  color: white;
  text-align: center;
  text-decoration: none;
  display: inline-block;
  min-width: 170px;
  font-size: 16px;
  cursor: pointer;
  border-radius: 30px;
}
#filter-toggle:after {
  content: "";
  position: absolute;
  right: 12px;
  top: 10px;
  width: 0;
  height: 0;
  border-top: 8px solid transparent;
  border-bottom: 8px solid transparent;
  border-left: 10px solid white;
  transition: 0.8s ease;
}
#filter-toggle.open:after {
  transform: rotate(90deg);
}

const toggleButton = document.getElementById("filter-toggle");
const filterDiv = document.querySelector(
  ".category_filter_box.categoryfilter.asp_sett_scroll"
);
//Hide div by default
filterDiv.style.display = "none";

toggleButton.addEventListener("click", () => {
  if (filterDiv.style.display === "none") {
    filterDiv.style.display = "block";
    toggleButton.textContent = "HIDE FILTERS ";
    toggleButton.classList.add("open");
  } else {
    filterDiv.style.display = "none";
    toggleButton.textContent = "SHOW FILTERS";
    toggleButton.classList.remove("open");
  }
});