document.addEventListener("DOMContentLoaded", function(){
// make it as accordion for smaller screens
if (window.innerWidth > 992) {

	document.querySelectorAll('.navbar .nav-item').forEach(function(everyitem){

		everyitem.addEventListener('mouseover', function(e){

			let el_link = this.querySelector('a[data-bs-toggle]');

			if(el_link != null){
				let nextEl = el_link.nextElementSibling;
				el_link.classList.add('show');
				nextEl.classList.add('show');
			}

		});
		everyitem.addEventListener('mouseleave', function(e){
			let el_link = this.querySelector('a[data-bs-toggle]');

			if(el_link != null){
				let nextEl = el_link.nextElementSibling;
				el_link.classList.remove('show');
				nextEl.classList.remove('show');
			}


		})
	});

}
// end if innerWidth
}); 
// DOMContentLoaded  end

//HTML
<div class='dropdown'>
          <Link id='product' className='every' to='/products'>OUR PRODUCTS</Link>
           <div class='dropdown-content'>
            <Link to='autocadd'>AutoCadd</Link>
            <Link to='techset'>Techset</Link>
            <Link to='Endorse'>Endorse</Link>
           </div>
          </div>

//CSS

.dropdown{
    position: relative;
    display: inline-block;
}
.dropdown-content{
    display: none;
    position: absolute;
    background-color: #f1f1f1;
    min-width: 160px;
    box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
    z-index: 1;
}

.dropdown-content>*{
 color: black;
 padding: 12px 6px;
text-decoration: none;
 display: block;
}

.dropdown:hover .dropdown-content{
    display: block;
}
.dropdown-content>*:hover{
    background-color: #ddd;
}

/*JS*/
const handleButtonWithSvgHover = (buttonId, svgWrapperId, svgFillColorNew, svgFillColorOld) => {
	const button = $(`#${buttonId}`);
	const svgWrapper = $(`#${svgWrapperId}`);
	const svgPath = svgWrapper[0].children[0].children[0];
	svgPath.style.transition = "0.6s";

	button.mouseenter(() => {
		svgPath.setAttribute("fill", svgFillColorNew);
	})
	button.mouseleave(() => {
		svgPath.setAttribute("fill", svgFillColorOld);
	})
}

handleButtonWithSvgHover("arrow-down-btn", "arrow-down-svg", "white", "black");
/*JS*/


/*HTML markdown example*/
<button id="arrow-down-btn">
  <div id="arrow-down-svg">
    <svg width="22" height="28" viewBox="..." fill="none">
		<path d="..." fill="black"></path>
	</svg>
  </div>
</buton>
/*HTML markdown example*/

<div id="uno">
 <div id="dos">
   <div id="tres">
     <div id="cuatro">
       <div id="cinco"></div>
     </div>
   </div>
 </div>
</div>

<style>  
  #uno{
width: 500px;
height: 300px;
background-color:green;
}
#uno:hover{ background: black}
#dos{
width:450px;
height:250px;
background: yellow;
}
#dos:hover{ background: white}
#tres{
width:400px;
height: 200px;
background: red;
}
#cuatro{
width:350px;
height:150px;
background:blue;
}
#cinco{
width:300px;
height:100px;
background:purple;
}
</style>

//Small Button//
.sqs-block-button-element--small {  position:relative;   height: 60px; line-height: 60px;  text-align: center; transition: 0.5s;  padding: 0 20px;  cursor: pointer; -webkit-transition:0.5s;}.sqs-block-button-element--small:hover {  background-color: transparent;  border-color: transparent; color: #000000;} .sqs-block-button-element--small:hover:before{ transition-delay: .2s; }.sqs-block-button-element--small:before{  width: 0%; height:100%;  z-index: 3;   content:'';  position: absolute;  bottom:-1px;   left:0;  box-sizing: border-box;  transition: .2s;}.sqs-block-button-element--small:hover:before {  width: 100% !important;  transition: .7s; }.sqs-block-button-element--small:before { border-bottom: 2px solid #000000;}

//Medium Button//
.sqs-block-button-element--medium {  position:relative;   height: 60px; line-height: 60px;  text-align: center; transition: 0.5s;  padding: 0 20px;  cursor: pointer; -webkit-transition:0.5s;}.sqs-block-button-element--medium:hover {  background-color: transparent;  border-color: transparent; color: #000000;} .sqs-block-button-element--medium:hover:before{ transition-delay: .2s; }.sqs-block-button-element--medium:before{  width: 0%; height:100%;  z-index: 3;   content:'';  position: absolute;  bottom:-1px;   left:0;  box-sizing: border-box;  transition: .2s;}.sqs-block-button-element--medium:hover:before {  width: 100% !important;  transition: .7s; }.sqs-block-button-element--medium:before { border-bottom: 2px solid #000000;}

//Large Button//
.sqs-block-button-element--large {  position:relative;   height: 60px; line-height: 60px;  text-align: center; transition: 0.5s;  padding: 0 20px;  cursor: pointer; -webkit-transition:0.5s;}.sqs-block-button-element--large:hover {  background-color: transparent;  border-color: transparent; color: #000000;} .sqs-block-button-element--large:hover:before{ transition-delay: .2s; }.sqs-block-button-element--large:before{  width: 0%; height:100%;  z-index: 3;   content:'';  position: absolute;  bottom:-1px;   left:0;  box-sizing: border-box;  transition: .2s;}.sqs-block-button-element--large:hover:before {  width: 100% !important;  transition: .7s; }.sqs-block-button-element--large:before { border-bottom: 2px solid #000000;}

.flip-container {
  background: transparent;
  display: inline-block;
}

.flip-this {
  position: relative;
  width: 100%;
  height: 100%;
  transition: transform 0.6s;
  transform-style: preserve-3d;
}

.flip-container:hover .flip-this {
  transition: 0.9s;
  transform: rotateY(180deg);
}

.button {
  color: #ff0000;
}

/* note: 100% is baseline 70% would be darker */
.button:hover {
  filter: brightness(125%);
}