* {
    margin : 0;
    padding: 0;
}

ul li {
    list-style: none;
}

a {
    text-decoration: none;
    color          : #767676;
}

body {
    color    : #767676;
    font-size: 14px;
}

.clearfix::after {
    content: '';
    display: block;
    clear  : both;
}

.mr0 {
    margin-right: 0 !important;
}

html,
body {
    /* 让网页滚动 变的平滑  */
    scroll-behavior: smooth;
}