CSS transition/hover-effect not working in Safari

Question

I'm currently restyling one of my clients sites ( http://citycredits.nl/ ), and I stumbled upon the following problem:

When you hover the products on the homepage, you should get a fadeIn box with the productname/description.

This works great in Chrome, FireFox and InternetExplorer. But when I run it in Safari (for Windows) the hover doesn't react. However, when I 'mouseout' of the product, the descriptionblock flashes.

The css code:

ul.products a li.product .details  {
    -webkit-transform: translateX(0px);
    -moz-transform: translateX(0px);
    -o-transform: translateX(0px);
    transform: translateX(0px);

    width: calc(100% - .9em) !important;
    background: rgba(53, 82, 100, .5) !important;
    top: 33% !important;
    bottom: 33% !important;
    height: calc(34% - .9em);
    text-align: center;
    padding: .5em !important;
    -moz-opacity: 0;
    -khtml-opacity: 0;
    filter: alpha(opacity=0);
    opacity: 0;

    -webkit-transition-delay: 1s;
    -moz-transition-delay: 1s;
    -o-transition-delay: 1s;
    transition-delay: 1s;

    -webkit-transition: opacity .4s ease-in-out;
    -moz-transition: opacity .4s ease-in-out;
    -o-transition: opacity .4s ease-in-out;
    transition: opacity .4s ease-in-out;
}

ul.products a li.product:hover .details {
    -moz-opacity: 1 !important;
    -khtml-opacity: 1 !important;
    filter: alpha(opacity=100) !important;
    opacity: 1 !important;

    -webkit-transition: opacity .8s ease-in-out;
    -moz-transition: opacity .8s ease-in-out;
    -o-transition: opacity .8s ease-in-out;
    transition: opacity .8s ease-in-out;
}

The HTML code for a product:

<ul class="products">
    <li class="product ...">
        <div class="details">
           ... details content here ...
        </div>
    </li>
    <li> ... more listitems ... </li>
</ul>

Answer 1

At least part of the problem is that your HTML is invalid, and the HTML on your site is not what you posted in your question. You posted:

<ul class="products">
    <li class="product ...">
        <div class="details">
           ... details content here ...
        </div>
    </li>
    <li> ... more listitems ... </li>
</ul>

What is actually on your site is:

<ul class="products">
  <a href="http://...">
    <li class="...">
      <img ...>
      <noscript>&lt;img.../&gt;</noscript>
      <div class="details...">
           ... details content here ...
      </div>
    </li>
  </a>
  <a><li> ... more listitems ... </li></a>...
</ul>

The only allowable child elements of a ul are li , script or template . If you put your a inside the li then it works as expected on the latest Mac Safari.

Whether or not this suggest fixes your particular issue, please make sure to post an accurate representation of the code that demonstrates your problem. It will save everybody time and help identify an answer more quickly.