#box {
    width: 1000px;
    height: 30px;
    border: 1px solid #225D98;
    border-radius: 4px;
    margin: 10px auto;
}

#nav {
    width: 1000px;
    height: 30px;
    border-radius: 4px;
    padding: 0;
    margin: 0;
    list-style: none;
    background-color: #225D98;
}

#nav li {
    display: block;
    width: 120px;
    height: 20px;
    margin: 5px auto;
    float: left;
    border-right: 1px solid #15426F;
    line-height: 20px;
    text-align: center;
    font-size: 14px;
    color: #ffffff;
}
#nav li:last-child{
    border: none;
}
#nav li.actived{
    border-radius: 8px;
    background-color: #82A3C5;
}

#tab{
    display: none;
     height: 30px;
     border-radius: 4px;
     padding: 0;
     margin: 6px;
     list-style: none;
     background-color: #82A3C5;
}
#tab li a{
    display: block;
    width: 50px;
    height: 20px;
    margin: 5px 0 0 20px;
    float: left;
    border-right: 1px solid #15426F;
    text-decoration: none;
    text-align: center;
    line-height: 20px;
    font-size: 12px;
    color: #15426F
}