*{padding:0; margin:0;}
ul{ list-style:none;}
#div{ width:300px; height:100px; margin:100px auto; border:1px solid #ff0000; position:relative; overflow:hidden;}
#div ul{ position:absolute; height:100px; left:0;}
#div ul li{ width:300px; height:100px; line-height:100px; text-align:center; float:left}
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