.Nikita,
<!DOCTYPE HTML>
<html>
<head>
<title>Untitled</title>
<style type="text/css">
div{
width: 200px;
overflow: hidden;
border: 5px solid #FF0000;
}
li{
margin: 0px;
float: left;
width: 70px;
background: #228B22;
}
ul{
margin: 0px;
display: block;
width: 280px;
}
</style>
</head>
<body>
<div>
<ul>
<li>1</li>
<li>2</li>
<li>...</li>
<li>N</li>
</ul>
</div>
</body>
</html>