* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-size: 14px;
}

.center {
    width: 1200px;
    max-width: 1200px;
    margin: 0 auto;
    overflow: hidden;
}

.center h2 {
    margin: 40px 0px;
}

.clear::after {
    content: ".";
    display: block;
    height: 0;
    clear: both;
    visibility: hidden;
    font-size: 0;
    line-height: 0;
}

ul,
ol,
dl {
    list-style: none;
}

a {
    text-decoration: none !important;
    color: #333;
}

.l {
    float: left;
}

.r {
    float: right;
}