.menu-child-box {
    position: absolute;
    z-index: 9999;
    top: 95px;
    left: -645px;
    width: 1920px;
    display: none;
    background: #fff;
    padding-bottom: 3px;
    float: left;
}
.sub-item {
    float: right;
    width: 160px;
}
.sub-item h4 {
    border-bottom: none;
    text-align: center;
}
.sub-item h4 .class_cover {
    width: 100%;
    background-color: #d6d6d6;
    left: 0px;
    bottom: 0px;
}
.header-nav li:nth-of-type(3) .sub-item h4 a{
    background: #054393;
    color: #fff !important;
}
.header-nav li:nth-of-type(3) .sub-item h4 .font{
	padding-left: 5px;
	padding-right: 5px;
}
.header-nav li:nth-of-type(3) .menu-child-box .sub-item{
	margin-bottom: 15px;
}
.sub-item h4 a {
    padding: 0;
    white-space: nowrap;
    -o-text-overflow: ellipsis;
    text-overflow: ellipsis;
    overflow: hidden;
    line-height: 42px;
}
.sub-item h4 img {
    width: 120px;
}
.header-nav .menu-child-box .sub-item{
	margin-bottom: 15px;
}