I am working on a <nav> for a mobile site. It is working file in Firefox and Chrome but not in Safari. I am running it on Windows 8.1 and I observed the same issue on Safari in iPad mini.
In the snippet below, if you check out the mobile view (max-width: 768px) and click on the menu icon in the top right corner, that icon is suppose to animate to a cross (X) icon, also the nav menu is suppose to slide down.
$("a.nav-opener").click(function(e) {
  e.preventDefault();
  $('body').toggleClass("nav-active");
});@media screen and (max-width: 768px){
  .holder {
    padding: 14px;
  }
  .logo {
    float: none;
    display: block;
    margin: 0px auto;
    width: 168px;
    position: relative;
    z-index: 2;
  }
  a {
    text-decoration: none;
    color: #DC7952;
    outline: medium none;
  }
  .logo img {
    width: 100%;
    height: auto;
    display: block;
  }
  img {
    max-width: 100%;
    height: auto;
  }
  .nav-opener {
    display: block;
    position: absolute;
    top: 0px;
    right: 0px;
    border-left: 1px solid #D4D4D4;
    width: 65px;
    height: 53px;
    text-indent: -9999px;
    overflow: hidden;
    background: none repeat scroll 0% 0% transparent;
    z-index: 15;
  }
  .nav-opener::before, .nav-opener::after {
    content: "";
    top: 19px;
  }
  .nav-opener::before, .nav-opener::after, .nav-opener span {
    background: none repeat scroll 0% 0% #DC7952;
    position: absolute;
    left: 15%;
    right: 15%;
    height: 6px;
    margin-top: -2px;
    transition: all 0.2s linear 0s;
  }
  .nav-opener::after {
    top: 37px;
  }
  .nav-opener span {
    background: none repeat scroll 0% 0% #DC7952;
    position: absolute;
    top: 28px;
    left: 15%;
    right: 15%;
    height: 6px;
    margin-top: -2px;
    transition: all 0.2s linear 0s;
  }
  .nav-active .nav-opener::after, .nav-active .nav-opener::before {
    transform: rotate(45deg);
    border-radius: 3px;
    top: 24px;
    left: 15%;
    right: 15%;
  }
  .nav-active .nav-opener::after {
    transform: rotate(-45deg);
  }
  .nav-opener::before, .nav-opener::after {
    content: "";
  }
  .nav-active .nav-opener span {
    display: none;
  }
  .navigation-container {
    border: 0px none;
    overflow: hidden;
    position: absolute;
    top: 53px;
    left: 0px;
    right: 0px;
    z-index: 999;
    max-height: 0px;
    transition: all 0.25s linear 0s;
    margin: 0px;
    padding: 0px;
  }
  .nav-active .navigation-container {
    max-height: 4000px;
  }
  .navigation-container .drop {
    transition: all 0.25s linear 0s;
    transform: translateY(-100%);
    background: none repeat scroll 0% 0% #FFF;
    width: 100%;
    display: table;
  }
  .nav-active .drop {
    transform: translateY(0px);
  }
  #nav {
    margin: 0px;
    overflow: visible;
    font-size: 24px;
    display: table-header-group;
    font-family: "apercu",sans-serif;
    font-weight: 700;
    line-height: 1.4285;
    text-transform: uppercase;
  }
  #nav ul {
    display: block;
    border-top: 1px solid #E8E8E8;
    padding: 0px;
    width: 100%;
    margin: 0px;
  }
  #nav li {
    display: block;
    width: auto;
    border-style: solid;
    border-color: #E8E8E8;
    -moz-border-top-colors: none;
    -moz-border-right-colors: none;
    -moz-border-bottom-colors: none;
    -moz-border-left-colors: none;
    border-image: none;
    border-width: 0px 0px 1px;
    list-style: outside none none;
  }
  #nav li.active a, #nav li a:hover {
    text-decoration: none;
    color: #FFF;
    background: none repeat scroll 0% 0% #DC7952;
  }
  #nav a {
    display: block;
    text-align: left;
    padding: 15px 20px;
  }
}<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="holder">
  <strong class="logo"><a href="#">Some logo</a></strong>
</div>
<!-- navigation opener -->
<a href="#" class="nav-opener"><span>opener</span></a>
<div class="navigation-container">
  <div class="drop">
    <!-- main navigation of the page -->
    <nav id="nav">
      <ul>
        <li class="active"><a href="#">HOME</a></li>
        <li><a href="#">BIBLE RESOURCES</a></li>
        <li><a href="#">OUR MISSION</a></li>
      </ul>
    </nav>
  </div>
</div>Can anyone point me in the right direction?
 
     
     
     
    