微信公众平台的密码和微信的密码一样吗?

 尝试这个 
 
 HTML 
 
<div class="itemsContainer">
    <div class="image"> <a href="#">  <img src="#" /> </a></div>
    <div class="play"><img src="#" /> </div>
</div>
 
 CSS 
 
.itemsContainer {
    background:red; 
    float:left;
    position:relative
}
.itemsContainer:hover .play{display:block}
.play{
  position : absolute;
    display:none;
    top:20%; 
    width:40px;
    margin:0 auto; left:0px;
    right:0px;
    z-index:100
} 
 
 DEMO 

Try this
 
HTML
 
<div class="itemsContainer">
    <div class="image"> <a href="#">  <img src="#" /> </a></div>
    <div class="play"><img src="#" /> </div>
</div>
 
CSS
 
.itemsContainer {
    background:red; 
    float:left;
    position:relative
}
.itemsContainer:hover .play{display:block}
.play{
  position : absolute;
    display:none;
    top:20%; 
    width:40px;
    margin:0 auto; left:0px;
    right:0px;
    z-index:100
} 
 
DEMO