html, body {
    width: 100%;
    height: 100%;
    position: relative;
}
body {
    line-height: 1.42857143;
    font-size: 14px;
    font-family: 'Source Sans Pro', 'Helvetica Neue', Helvetica, Arial, sans-serif, Microsoft YaHei;
}
*, ::after, ::before {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
*:focus {
    outline: 0 !important;
}
ul, li {
    margin: 0;
    padding: 0;
    list-style: none;
}
a {
    text-decoration: none;
    cursor: pointer;
}
a:hover, a:focus {
    text-decoration: none;
}
img {
    max-width: 100%;
}