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

.clearfix {
    *zoom: 1;
}

a,
body,
button,
caption,
dd,
div,
dl,
dt,
em,
figure,
form,
h1,
h2,
h3,
h4,
h5,
h6,
html,
i,
img,
input,
label,
li,
ol,
p,
span,
strong,
sub,
sup,
table,
tbody,
td,
tfoot,
th,
thead,
tr,
tt,
ul {
    padding: 0;
    margin: 0;
}

li {
    list-style: none;
}

a {
    text-decoration: none;
}

.fl {
    float: left;
}

.fr {
    float: right;
}

i,
em {
    font-style: normal;
}

b {
    font-weight: 400;
}

s,
del {
    text-decoration: none;
}

body {
    font: 14px/1.5 "PingFang SC", "Lantinghei SC", "Microsoft YaHei", "HanHei SC", "Helvetica Neue",
        "Open Sans", Arial, "Hiragino Sans GB", "微软雅黑", STHeiti, "WenQuanYi Micro Hei", SimSun, sans-serif
}

.ellipsis {
    white-space: nowrap;
    -o-text-overflow: ellipsis;
    text-overflow: ellipsis;
    overflow: hidden
}

.w {
    width: 1200px;
    margin: auto;
}