header a{
    color: #ffffff;
}
a:hover{
    color: #337ab7;
}
header{
    width: 100%;
    height: 50px;
    color: #ffffff;
    background-color: rgba(102,204,204,.8);
    /* padding: 10px 0px; */
    position: fixed;
    top: 0px;
    z-index: 2;
}
.box{
    width: 90%;
    height: 50px;
    margin: 0px auto 0px 10%;
}
.box .info{
    float: left;
    font-size: 2vw; 
    font-family:"Times New Roman", Times, serif;
    padding: calc(25px - 1vw) 0px;
}
header ul{
    list-style: none;
}
.nav-li{
    float: left;
    width: 10%;
    /* width: 120px; */
    text-align: center;
    font-size: 1.2vw;
    padding: calc(25px - 0.6vw) 0px;
}

.dropdown {
    position: relative;
    display: inline-block;
}
.dropdown-content {
    width: 100%;
    display: none;
    position: absolute;
    top: 51px;
    left: 0px;
    color: #ffffff;
    background-color: rgba(102,204,204,.8);
    border-bottom-right-radius: 10px;
    border-bottom-left-radius: 10px;
}
.dropdown:hover .dropdown-content {
    display: block;
}
.dropdown-content li{
    width: 100%;
    /* width: 120px; */
    text-align: center;
    font-size: 1em;
    padding: 10px 0px;
    border-bottom: 1px solid #e3e3e3;
}

header .box form{
    float: right;
    margin: 10px 0px 0px 0px;
    width: 200px;
}

header .box .search{
    float: left;
    border: none;
    border: 1px solid #e3e3e3;
    border-radius: 4px;
    box-shadow: 0 1px 1px rgba(0,0,0,.05);
    background-color: #ffffff;
    height: 30px;
    margin-right: 10px;
    width: 100px;
}
header .box .search input{
    border: none;
    outline: none;
    line-height: 30px;
    width: 100%;
}
header .box button{
    float: left;
    border: 1px solid #e3e3e3;
    border-radius: 4px;
    box-shadow: 0 1px 1px rgba(0,0,0,.05);
    background-color: #ffffff;
    width: 50px;
    height: 30px;
}
header .box .login{
    float: right;
    text-align: center;
    font-size: 1.2vw;
    padding: calc(25px - 0.6vw) 0px;
    margin-right: 30px;
}