* {
    margin: 0;
    padding: 0;
}

body {
    font-size: 14rem;
}

ul, li, ol, dl, dt, dd, p, h1, h2, h3, h4, h5, h6, img {
    margin: 0px;
    padding: 0px;
}

a {
    display: block;
    text-decoration: none;
    color: #2F2F2F;
}

span {
    display: block;
}

li {
    list-style: none;
}

.clearfix:after {
    display: block;
    visibility: hidden;
    content: "";
    clear: both;
    height: 0;
}

/*锚点链接*/
.top1 {
    width: 60px;
    height: 60px;
    position: fixed;
    top: 600px;
    left: 1580px;
}