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console 命令行工具 X clear

                    
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console
<div class="zhengti">
<div class="top"></div>
<div class="top2"></div>
<div class="style3">
  <ul>
    <li><a href="#"><strong></strong>首页</a></li>
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</div>
<div class="content">
  <div class="leftcontent"><h2>新闻分类</h2>
    <ul>
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      <li><a href="#">动物世界</a></li>
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<div class="center">
<div class="post">
<h2><a href="#" rel="bookmark">欢迎走进</a></h2>
<div class="enter"> <img src=""  align="left" />
            <p></p>
           <img src="" > 
        
          </div>
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    </div>
  </div>
           
           
<div class="footer">
  <p>Copyright&copy;2017 网络服务中心 All Rights  Reserved</p>
</div>
</div>
body{
  margin:0pt;
  padding:0pt;
  font-family:0pt;
  font-size:20px;
  color:rgb(102,102,102);
}
.zhengti{
  margin-top:0pt;
  background-color:white;
  width:800px;
  }
.top{
  background:url()repeat-y center top;
  height:83px;
  clear:both;
  width:800px;
  padding-left:30px;
  padding-right:30px;
  margin-top:0px;
}
.top2{
  background:url(https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1493110374037&di=318ee276d7bf9e2d020579281705da09&imgtype=0&src=http%3A%2F%2Fscimg.jb51.net%2Fallimg%2F151106%2F14-1511061A0240-L.jpg) no-repeat left center;
  float:left;
  width:350px;
  height:83px;
  margin-top:0px;
}
.style{
  background:url(https://ss1.bdstatic.com/70cFvXSh_Q1YnxGkpoWK1HF6hhy/it/u=2540415688,1242755799&fm=23&gp=0.jpg)repeat center top;
  height:225px;
  font-family:Arial;
  font-size:18px;
}
.style3{
  padding:12px 34px 30px 30px;
  text-align:right;
}
.style3 ul{
  margin:0px;
  list-style-type:none;
  list-style-image:none;
  list-style-position:outside;
  }
.style3 li{
  padding:0pt 9px;
  display:inline;
  }
.style3 li a:link,.style3 li a:visited{
  margin:0px;
  color:#08519C;
  text-decoration:none;  
}
.style3 li a:hover{
  margin:0px;
  color:rgb(176,0,0);
  text-decoration:underline;
}
.content{
  clear:both;
  width:750px;
}
.content.leftcontent{
  margin:0pt;
  padding:10px 8px 10px 25px;
  float:left;
  width:225px;
}
.leftcontent h2,.leftcontent h2 a{
  font-size:25x;
}

.leftcontent ul{
  margin:0pt;
  padding:0pt 0pt 5px;
  font-size:18px;
  font-family:"宋体";
  list-style-type:none; 
}
.leftcontent li{
  margin:7px 0px;
  padding-left:30px;
}
.leftcontent a:link,.leftcontent a:visited{
  color:rgb(102,102,102);
  font-weight:normal;
  text-decoration:none;
}
.leftcontent a:hover{
  color:rgb(176,0,0);
  font-weight:bold;
  text-decoration:none;
}

.content.rightcontent{
  padding:15px 0px 10px 8px;
  float:right;
  width:470px;
}
.rightcontent h2,.rightcontent h2 a{
  margin:0pt;
  padding:0pt;
  font-size:18px;
  color:rgb(85,85,85);
  letter-spacing:0px;
  font-weight:normal;
  text-decoration:none;
  }
.rightcontent h2 a:hover{
  margin:0pt;
  padding:0pt;
  font-size:18px;
  color:rgb(180,0,0);
  letter-spacing:0px;
  font-weight:normal;
  text-decoration:none;
}
.center p{
  margin:5px 0px;
  font-size:12px;
  line-height:1.5;
  text-indent:2em;
}
.footer{
  width:702px;
  height:40px;
  margin-left:12px;
  padding-top:10px;
  padding-left:34px;
  border-top:1px solid #999;
  clear:both;
  font-size:12px;
  color:#08519C;
}
.footer p{
  text-align:center;
  margin:0pt;
  padding:0pt;
}