transform
~~~
<style>
.one{
position: absolute;
width: 300px;
height: 300px;
}
.one img{
width: 100%;
height: 100%;
}
.two{
position: absolute;
width: 300px;
height: 300px;
background:rgba(236, 160, 198, 0.5);
bottom: -100%;
transition: all 2s;
}
.pran{ position: relative;
overflow: hidden;
width: 300px;
height: 300px;
}
.pran:hover>.two{
transform: translateY(-100%);
}
</style>
</head>
<body>
<div class="pran">
<div class="one">
<img src="现代美女/01.png" alt="">
</div>
<div class="two">
</div>
</div>
</body>
~~~
效果图：
