<分区>
我有以下测试页面和 CSS。显示时，每个列表项之间有 4px 的间隙。如何让元素彼此相邻？
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Frameset//EN" "http://www.w3.org/TR/html4/frameset.dtd">
<html>
<head>
<link type="text/css" rel="stylesheet" href="/stylesheets/test.css" />
</head>
<body>
<div>
<ul class="nav">
<li class="nav"><a class="nav" href="#">One1</a></li>
<li class="nav"><a class="nav" href="#">Two</a></li>
<li class="nav"><a class="nav" href="#">Three</a></li>
<li class="nav"><a class="nav" href="#">Four</a></li>
</ul>
</div>
</body>
</html>
CSS:
ul.nav, ul li.nav {
display: inline;
margin: 0px;
padding: 0px;
}
ul.nav {
list-style-type: none;
}
li.nav {
background-color: red;
}
a.nav {
background-color: green;
padding: 10px;
margin: 0px;
}
a:hover.nav {
background-color: gray;
}