个回答

• 慕仰9892961

  2018-06-08 16:07:47

  在img中设置display:block或者vertical-align: bottom属性。就会完美解决了，原因是img的边距和父级的div的baseline是持平的，而baseline默认还与div的边距存在间距

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• wang229336765

  2017-04-26 13:55:17

  nav左浮动

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• 胡鸿远

  2017-04-22 17:56:33

  还是没有解决。咋个弄呢？

  @charset "utf-8";

  /* CSS Document */

  
  

  *

  {

  margin:0;

  padding:0;

  font-size:12px;/*表示全局声明div的边框外部和元素距离为0*/

  }

  
  

  body{

  background: #BBBBBB;/*body背景颜色*/

  }

  
  

  .top{

  width:100%;

  height:27px;

  background:url(../images/top_bg.jpg) repeat-x;

  }

  
  

  .top_content{

  width:1000px;

  margin:0 auto;

  }

  
  

  .top_content li{/*content下面的li 属性设置*/

  list-style-image:url(../images/li_bg.gif);

  float:right;

  line-height:27px;

  width:70px;

  }

  
  

  .top_content a:link,.top_content a:visited{/*content下面的链接去掉颜色和下划线*/

  color:#FF0004;

  text-decoration:none;

  }

  
  

  .top_content a:hover,.top_content a:active{/*鼠标经过的样子和点击不要下划线*/

  color:#FFBE00;

  text-decoration:none;

  }

  
  

  .wrap

  {width:1000px;margin:0 auto;}

  
  

  .logo

  {height:80px;background-color:#FFFFFF}

  .logo_left

  {width:10px;float:left;}

  .logo_right

  {width:300px;float:right;  margin-top:30px;height:80px;color:#635353;}

  
  

  .logo_right img{

  vertical-align:middle; margin-right:10px;}

  .tel

  {font-family:"微软雅黑"; font-size:16px; color:#FF0027;}

  
  

  
  

  .nav{

  height:40px;clear:both;}

  
  

  .nav_left{width:10px;

  height:40px;

  background:url(../images/nav_left.jpg) no-repeat;

  float:left;}

  
  

  .nav_mid{

  width:980px;

  background:url(../images/nav_bg.jpg) repeat-x;

  float:left;}

  
  

  .nav_right{

  width:10px;

  height:40px;

  background:url(../images/nav_right.jpg) no-repeat;

  float:left;}

  .nav_mid_left,.nav_mid_right{

  float:left;}

  .nav_mid_left{

  width:680px;}

  .nav_mid_right{

  width:300px;}

  .nav_mid_left li

      list-style:none;

  line-height:40px;

  text-align:center;/*文字居中*/

  width:80px;

  float:left;

  }

  .nav_mid_left a:link,.nav_mid_left a:visited{

  color: #FFFFFF;

  text-decoration:none;

  font-size:16px;

  font-family:"微软雅黑";

  }

  .nav_mid_left a:hover,.nav_mid_left a:active{

  color: #BCE500;

  text-decoration:none;

  font-size:16px;

  font-family:"微软雅黑";

  }

  .search_text{

  width:190px;

  height:25px;

  background:url(../images/search.jpg) no-repeat right center ;

  margin-top:5px;

  background-color:#FFFFFF;

  padding-right:25px;

  border:1px solid #FFFFFF;

  }

  
  

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• 落雨季

  2017-04-21 22:11:45

  可能有默认margin或者padding，试试重置掉

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