<div class="notice_active">
<ul>
<li >
<a>111111111111111</a>
</li>
<li >
<a>222222222222</a>
</li>
<li>
<a>3333333333333333</a>
</li>
</ul>
</div>
.notice_active {
float: left;
width: 55%;
height: 50px; /*此高要等於父高*/
padding: 0;
overflow: hidden;
position: relative;
margin-left:16%;
}
</style>
<script>
var time = setInterval(function () {
t();}, 5000)
function t() {
var he = $(".notice_active>ul>li").height();//找到li高
$(".notice_active>ul>li").eq(0).appendTo($(".notice_active>ul")); //複製第一個到最後一個
$(".notice_active>ul").animate({
"marginTop": "-" + he
}, 500, function () {
$(".notice_active>ul").css({
"marginTop": 0
})
})
}
</script>