.head_box {
    position: fixed;
    top: 0;
    left: 0;
    height: 15%;
    width: 100%;
    background-color: white;
    z-index: 10;
}

.head_content {
    width: 80%;
    height: 100%;
    margin: auto;
}

.head_logo {
    position: relative;
    width: 10%;
    height: 100%;
}

.head_logo > img {
    width: 70%;
    height: auto;
}

.head_logo_text {
    width: 17%;
    height: 100%;
    margin-left: 1%;
}

.head_logo_text > span {
    display: inline-block;
    vertical-align: middle;
    font-weight: bold;
    color: #19a5e0;
}

.head_nav {
    position: relative;
    width: 70%;
    height: 100%;
}

.head_ul {
    width: 100%;
    height: 26px;
    display: inline-block;
    vertical-align: middle;
}

/*>: 下一级里的元素*/
.head_ul > li {
    width: 16%;
    height: 100%;
    float: left;
}

.head_ul > li > a {
    float: left;
    width: 100%;
    height: 100%;
    text-align: center;
}

.head_ul > li > a div {
    /*display: inline-block;*/
    /*vertical-align: middle;*/
    width: auto;
    height: 100%;
    overflow: hidden;
}

.head_ul > li > a div span {
    display: block;
    height: 100%;
    line-height: 26px;
    color: #19a5e0;
    position: relative;
    top: 0;
    text-transform: capitalize;
    transition: all 0.5s ease 0s;
    -webkit-transition: all 0.5s ease 0s;
    -moz-transition: all 0.5s ease 0s;
    -o-transition: all 0.5s ease 0s;
}

.head_ul > li.active > a div span {
    color: #2b71a8;
}

.head_ul > li:hover > a div span{
    top: -27px;
}

.blank_top {
    width: 100%;
    height: 15%;
}

.active {
    color: #2b71a8 !important;
}