* {
    padding: 0;
    margin: 0;
}

.img-view img {
    display: block;
    width: 100%;
}

.header-view {
    height: 50px;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: #fff;
    z-index: 2;
    box-shadow: 0px 0px 15px 0px rgba(0, 0, 0, 0.1);
}

.center {
    width: 1200px;
    margin: 0 auto;
}

.header-nav-list {
    display: flex;
}

.header-item {
    width: 120px;
    text-align: center;
    line-height: 50px;
    cursor: pointer;
}

.header-item a {
    display: block;
    width: 100%;
    height: 100%;
    text-decoration: none;
    color: #333;
    font-size: 16px;
}

.content {
    font-size: 16px;
    line-height: 32px;
    padding-top: 100px;
}

.footer-view {
    background-color: #333;
    padding: 40px 0;
    
}

.footer-view  div {
    text-align: center;
    color: #fff;
}

.footer-view  div a{
    color: #fff;
}
.img-view .code{
    display: inline-block;
    width: 80px;
    height: 80px;
    position: fixed;
    bottom: 50px;
    right: 50px;
}