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jq文字上下無縫滾動--沒注意看--挺簡單的

<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<title></title>
		<script src="js/jquery.min.js" type="text/javascript" charset="utf-8"></script>
		<style type="text/css">
			*{
				margin: 0px;
				padding: 0px;
			}
			.box{
				width: 500px;
				height: 50px;
				line-height: 50px;
				text-align: center;
				background: blue;
				border: 2px solid red;
				margin: 0px auto;
				margin-top: 100px;
				color: yellow;
				position: relative;
				overflow: hidden;
			}
			.hezi{
				height:200px;
				position: absolute;
				top: 0px;
				left: 0px;
				width: 100%;
			}
			h1{
				height: 50px;
			}
		</style>
		
		<script type="text/javascript">
			$(function(){
				var num=0;
				
				setInterval(function(){
					num++;
					if(num==4){
						$('.hezi').css({'top':'0px'});
						
						num=1;
					}
					$('.hezi').stop().animate({'top':-50*num+'px'},200)
				},1000)
			})
		</script>
	</head>
	<body>
		<div class="box">
			<div class="hezi">
				<h1>今天的天氣很好</h1>
				<h1>賈老師心情很好</h1>
				<h1>賈老師想罰蘇啟海做俯臥撐</h1>
				<h1>今天的天氣很好</h1>
			</div>
			
		</div>
	</body>
</html>