html,
body {
    margin: 0;
    padding: 0;
    
}

.row {
    margin: 0;
}

.YaHei {
    font-family: Microsoft Yahei, Arial, Helvetica, sans-serif;
}

.clear {
    clear: both;
}

a {
    color: #333;
}

a:hover {
    text-decoration: none;
    color: #a00;
}

div,
ul,
li {
    list-style: none;
    padding: 0;
    margin: 0;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    padding: 0;
    margin: 0;
    line-height: 2;
}