CSS的word-spacing网上都说不支持汉字为什么我这里可以啊？

悬赏园豆：5 [待解决问题]

<!DOCTYPE html>
<html>
<head>
    <title>百度页面练习</title>
    <link rel="stylesheet" type="text/css" href="lianxi1.css">
    <style type="text/css">
    .zi{text-decoration: underline}
    .top1{text-align: right;
          word-spacing :200px;
        
    }
    .top2{
    margin-right: 10em;
        </style>
    }
</head>
<body>
<div class="top2">
    <div class="top1">
        <span class="zi">新闻</span>
        <span class="zi">Hao123</span>
        <span class="zi">地图</span>
        <span class="zi">视频</span>
        <span class="zi">贴吧</span>
        <span class="zi">登陆</span>
        <span class="zi">设置</span>
    </div>
</div>                                            
</body>
</html>