鼠标放上去盒子向上滑动

<div class="box clearfix">
       <div class="box1"></div>
       <div class="box2"></div>
    </div>

.box{height: 500px;width: 500px;background-color: pink;}
.box1,.box2{width: 100px;height: 100px;background:red;margin: 30px 30px;float: left;transition: all 0.8s ease;-moz-transition: all 0.8s ease;-webkit-transition: all 0.8s ease;-o-transition: all 0.8s ease;}
.box1:hover{margin-top: -10px;}
.box2:hover{margin-top: -10px;}