<ul?id="test">??
????????<li>Test</li>??
????????<li>Test</li>??
????????<li>Test</li>??
????????<li>Test</li>??
????????<li>Test</li>??
????</ul>

body,ul,li{margin:0;padding:0;}??
???ul,li{list-style:none;}??
???#test{??
???????margin:20px;??
???????width:390px;??
???????background:#F4F8FC;??
???????border-radius:3px;??
???????border:6px?solid?red;??
???}??
/*每一個li的高度是35px*/??
???#test?li{??
???????height:25px;??
???????line-height:25px;??
???????padding:5px;??
???????border-bottom:3px?dotted?black;??
margin-bottom:-3px;??
???}