我想问下为什么加了overflow：hidden后整块DIV会都无法显示
<style>
.bannerBox
{
position:relative;
overflow:hidden;
width:450px;
height:650;
}
.bannerimg
{
position:absolute;
}
.bannerimg img
{
width:450px;
height:650px;}
</style>
</head>
<body>
<div class="bannerBox">
<div class="bannerimg">
<img src="f7a72a56c476518eed39040b82ac0f5e5b2f0c3a33ce3-NIP0rj_fw658.jpg" alt="5"/>
<img src="904305c3bf76d45946bd322f9a0fb8080e84263730f9c-qE6irW_fw658.jpg" alt="1"/>
<img src="77357079cb499e3c9c15751ad5fca28338d2164640b03-qwwlYT_fw658.jpg" alt="2"/>
<img src="aabe407ff62caff5a052b81d2d0bcb2d45e3775c7d084-VmOqNM_fw658.jpg" alt="3"/>
<img src="c9afa00bea746db4020ff42c02b77847a4326f531c76c-de8uen_fw658.jpg" alt="4"/>
<img src="f7a72a56c476518eed39040b82ac0f5e5b2f0c3a33ce3-NIP0rj_fw658.jpg" alt="5"/>
<img src="904305c3bf76d45946bd322f9a0fb8080e84263730f9c-qE6irW_fw658.jpg" alt="1"/>
</div>
