*{
    margin: 0;
    padding: 0;
    list-style: none;
    text-decoration: none;
    font-family: "microsoft yahei";

}
img{
    border: none;
}
body{
    background: #f5f5f5;
}
/*****公共头部部分开始********/
.header {
    width: 100%;
    height: 475px;
    background: url("/images/3/dg_banner.png") no-repeat center;
}
.nav {
    width: 100%;
    height: 50px;
    background: #7da555;
    margin-bottom: 30px;
}
.nav_list li {
    float: left;
    line-height: 50px;
}
.nav_list li a {
    font-size: 15px;
    float: left;
    color: #fff;
}
.nav_list_icon {
    width: 17px;
    height: 18px;
    margin: 16px 10px 0 0;
    background: url("/images/3/home.png") no-repeat;
}
.nav_list_tip {
    width: 10px;
    height: 7px;
    color: #ffffff;
}
/*****公共头部部分结束********/

/*版权*/
.copy{
    width: 100%;
    height: 110px;
    background: #c8c8c8;
}
.copy_logo{
    float: left;
    padding-left:225px;
    max-width: 55px;
    margin-top:10px;
}
.copy_con{
    width: 1100px;
    height: 80px;
    margin: 0 auto;
    font-size: 13px;
    color: #666666;
    line-height: 30px;
    text-align: center;
}
.copy_con .copy_txt{
    text-align: center;
    margin-top: 10px;
    width: 650px;
    float: left;

}
.copy_con .copy_txt span{
    padding-top: 5px;
    max-width: 560px;
    width: 55%;
    height: 40px;
    color: #666666;
}

/*课程介绍表格*/
*{
    font-family: "microsoft yahei";
}
.biaoge{
    height: 140px;
    text-align: center;
    font-size: 15px;
    border-right: 1px solid #dcdcdc;
}
.top1{
    background: #c8c8c8;
    font-size: 17px;
    font-weight: bold;
    height: 50px;
    border: none;
    text-align: center;
}
.col{
    border-bottom: 1px solid #dcdcdc;
}