html, body {
    margin: 0;
    padding: 0;
    border: 0;
    box-sizing: border-box;
    overflow-x: hidden;
  }

  main {
    display: block;
    width: 100%;
  }

  .png-holder {
    position: relative;
    display: inline-block;
    margin: 15px;
    position: sticky;
    
}

  .info{
    visibility: hidden;
    background-color: rgba(255, 255, 255, 0.821);
    box-shadow: 1px 1px 5px rgba(0, 0, 0, 0.632);
    color: black;
    text-align: center;
    border-radius: 5px;
    padding: 10px;
    position: absolute;
    top: -50px;
    white-space: normal;
    z-index: 1; /* Ensure above everything */
    opacity: 0;
    transition: opacity 0.3s, top 0.3s;
    min-width: 150px;
    margin: 10px;

  }

  .png-holder:hover .info {
    visibility: visible;
    opacity: 1;
    z-index: 1; 
    top: -5px; 
    display: block;
}

.png-holder{
  position: relative;
  overflow: visible;
}

@media (max-width: 600px) {
  .png-holder img {
      width: 100px;
  }
}