body{
    margin: 0;
    padding: 0;
}
h1,
h2,
h3,
h4,
h5,
h6,
p,
span,
a,
i,
ul,
li{
    font-size: 18px;
    font-family: "微软雅黑";
    color:#000;
    margin: 0;
    padding: 0;
}
ul{
    list-style: none;
}
a{
    text-decoration: none;
}