悬停时出现问题

Question

我在代码中发现了一个问题。当我进入菜单时，会自动打开div“Image”。问题是我不在菜单之外。

.menu li img{
  position:relative;
  width:200px; height:auto; margin:0 auto;
  z-index: 1;
  opacity: 0;
  left:-40px; top:-10px;
  -webkit-transition: left 0.4s ease-in-out, opacity 0.6s ease-in-out;
  -moz-transition: left 0.4s ease-in-out, opacity 0.6s ease-in-out;
  -o-transition: left 0.4s ease-in-out, opacity 0.6s ease-in-out;
  -ms-transition: left 0.4s ease-in-out, opacity 0.6s ease-in-out;
  transition: left 0.4s ease-in-out, opacity 0.6s ease-in-out;
}

请参阅demo