body{font-family:"微软雅黑";
}
 
   
   
 

 /* 汇合logo*/ 
#huihelogo{

position: fixed;
top: 17px;left: 49px;

  }
  #huihelogo:hover{width: 20px;}
  #huihelogo a{
position: fixed;
top: 64px;left: 142px;
font-size: 12px;
font-weight: bold;
text-decoration: none;
color: black;

  }
#login_btn {position: relative;right:90px;}
#login_btn li{background: #d31a28;font-size:20px;font-weight: 700;position: absolute;


 }
 #login_btn>li>a{color: white;text-decoration: none;width: 70px;height: 36px;line-height: 36px;}
 #login_btn>li:hover a{font-size: 23px;background: rgba(225,0,0,0.8);}
 
/* 汇合内容*/
#huihexDSP{
  min-width: 800px;
  margin: auto;  
  position: absolute;  
  top: 0; left: 0; bottom: 0; right: 0;
  padding-top: 12%;
  

}
  /*汇合营销*/
#huihexDSP h1           
        {
            color: red;
            
            font-size: 65px;
            font-weight: 600;
            padding-bottom: 25px;
}
/*基于大数据精准营销技术的*/
#huihexDSP h2              
        {

            color: #000;            
            letter-spacing:4px;
            font-size: 65px;
            font-weight: 600;
            padding-bottom: 5px;
}
/* 电商DSP*/
#huihexDSP h3{                
           color: #000;
            
            letter-spacing:4px;
            font-size: 65px;
            font-weight: 600;
            padding-bottom: 25px;
}

 	

/*下拉菜单*/

ul,ol,li
  {list-style:none;padding:0px;margin:0px;}
  .menu *
  {line-height:30px;}
  .menu{position: fixed ;right:5%;top: 3.5%; z-index: 100;}
  .menu a
  {
      text-decoration:none;
      display:block;
  }
 .menu ul
 {
    text-align:center;
   background: rgba(19,19,19,0.7);

 }
 
 .menu>ul>li:hover ul
 {display:block;}
 .menu>ul{height:0px;width:80px;} /* 即使没有菜单项也能保持顶级菜单栏的高度。 */
 /* 一级菜单 */
 .menu>ul>li
 {
     text-align:center;
     display:inline-block;
     width:80px;

 }
 .menu>ul>li>a
 {color:white;}

/* 下拉的菜单栏 */
 .menu>ul>li ul
 {
     display:none;
     width:110px;
     position:absolute;

     margin-left:0px;
     margin-top:0px;
     background: rgba(0,0,0,0.65);
     /*box-shadow:2px 2px 2px #000;
     -webkit-box-shadow:2px 2px 2px #000;
     -moz-box-shadow:2px 2px 2px #123;*/
 }
 /* 下拉菜单的菜单项 */
 .menu>ul>li>ul li
 {padding-left:3px; position:relative;border:0;border-width:thin;height: 36px;padding-top: 3px;}
#fitst_li{border-top: 0px;}

 .menu>ul>li>ul li>a
 {color:white;}
 .menu>ul>li>ul li:hover
 {background:rgb(37,38,38);}