<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>css控制超出部分自动省略...</title>
<style>
.nav {
width: 100px;
white-space: nowrap;
overflow: hidden;
text-overflow: ellipsis;
}
</style>
</head>
<body>
<div class="nav" title="你你你你你你你你你你你你你你你你你你你你你你你你你你你你你">你你你你你你你你你你你你你你你你你你你你你你你你你你你你你</div>
</body>
</html>