body {
    margin: 0 auto;
    height: 100%;
    background-color: #f7f7f7;
    font-family: 'Arial', 'SimHei', 'microsoft yahei' !important;
}

.main {
    width: 100%;
    height: 100%;
}

.common-header {
    height: 200px;
}

.common-header div {
    height: 100%;
    background-color: #fff;
}
.common-header div img{
    height: 200px;
    margin-left: 20px;
}

.common-banner {
    position: relative;
    width: 100%;
}

.common-banner img {
    width: 100%;
}

.common-tit {
    position: absolute;
    right: 0;
    top: 60%;
    margin-right: 80px;
    color: #fff;
    font-size: 55px;
    font-weight: bold;
}

.content{
    background-image: url("../images/bg.png");
    height: 100%;
    margin-bottom: 200px;
    border-bottom: 1px solid #666;
}

@media only all and (max-width: 1440px) {

}

@media only all and (max-width: 1024px) {

}

@media screen and (max-width: 768px) {

}