body,
ol,
ul,
h1,
h2,
h3,
h4,
h5,
h6,
p,
th,
td,
dl,
dd,
form,
fieldset,
legend,
input,
textarea,
select {
    margin: 0;
    padding: 0;
}
body {
    /* font: 12px "微软雅黑", "Arial Narrow", HELVETICA; */
    font-family: BlinkMacSystemFont, -apple-system, "Segoe UI", "Roboto",
        "Oxygen", "Ubuntu", "Cantarell", "Fira Sans", "Droid Sans","微软雅黑",
        "Helvetica Neue", sans-serif;
    font-size: 12px;
    background: #fff;
    -webkit-text-size-adjust: 100%;
    font-size: 13px;
}
a {
    color: #2d374b;
    text-decoration: none !important;
}
a:hover {
    color: #2877c4;
    text-decoration: underline;
}
em {
    font-style: normal;
}
li {
    list-style: none;
}
img {
    border: 0;
    vertical-align: middle;
}
table {
    border-collapse: collapse;
    border-spacing: 0;
}
p {
    word-wrap: break-word;
}

button {
    border: none;
    outline: none;
}

.clearfix:after {
    content: "."; /*设置伪元素的内容*/
    display: block;
    visibility: hidden; /*设置伪元素为隐藏*/
    height: 0;
    clear: both;
}

.fl {
    float: left;
}

.fr {
    float: right;
}