Venture theme hover for dropdown having issue

Store Design
1

Hello guys, I had implemented the code for the “Hover to see second product image” following a guide on a shopify post.

However, it has affected my hover to trigger header megabar menu. Now, even if I am way below the header menu bar, the dropdown of the menu bar gets triggered. I feel this is because of the code that I had added for “Hover to see second product image” which is causing this issue.

This is the code that I had entered for hover to see second product image request.

/* ===============================================
// Reveal module
// =============================================== */

.reveal .hidden { display: block !important; visibility: visible !important;}
.product:hover .reveal img { opacity: 1; }
.reveal { position: relative; }
.reveal .hidden { 
  position: absolute; 
  z-index: -1;
  top: 0; 
  width: 100%; 
  height: 100%;  
  opacity: 0;
  -webkit-transition: opacity 0.3s ease-in-out;
  -moz-transition: opacity 0.3s ease-in-out;
  -o-transition: opacity 0.3s ease-in-out;
  transition: opacity 0.3s ease-in-out;  
}
.reveal:hover .hidden { 
  z-index: 100000;
  opacity: 1;    
}
.reveal .caption {
  position: absolute;
  top: 0;  
  display: table;
  width: 100%;
  height: 100%;
  background-color: white; /* fallback for IE8 */
  background-color: rgba(255, 255, 255, 0.7);
  font: 13px/1.6 sans-serif;
  text-transform: uppercase;
  color: #333;
  letter-spacing: 1px;
  text-align: center;
  text-rendering: optimizeLegibility;
}
.reveal .hidden .caption .centered {
  display: table-cell;
  vertical-align: middle;
}

@media (min-width: 480px) and (max-width: 979px) {
  .reveal .caption { 
    font-size: 11px; 
  }
}

Can someone please tell me what can I do so that this code does not affect site navigation hover or the megabar menu dropdown?

Any help would be highly appreciated.

Store- sohumretail.myshopify.com

Pass- Chaman@10