老师，总觉得自己的代码怪，是否有问题？

来源：2-4 编程练习

weixin_慕标3013322

2019-09-17 13:27:10

<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title></title>
<style type="text/css">
    /*此处写代码*/
    body{
        margin:0;padding:0;color:#fff;text-align:center;

    }
    .container{
        width:1100px;
        height:100px;
        background:black;
        position:absolute;
        margin:0 auto;
        top:50%;
        left:50%;
  margin-top:-50px;
  margin-left:-550px;

    }
    .log{
        float:left;

    }
.nav{
     float:right;}
a{
        text-decoration:none;
        color:#fff;
        line-height:100px;
        margin:20px;

    }

</style>
</head>
<body>

<div class='container'>
    <div class='log'>
        <a href='#'><img src='http://climg.mukewang.com/58c0d2d900016ce303000100.png'/></a>
    </div>
<div class='nav'>
   <a href='#'>课程</a>
   <a href='#'>职业路径</a>
   <a href='#'>实战</a>
   <a href='#'>猿问</a>
   <a href='#'>手记</a>
</div>
</div>
</body>
</html>