*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    list-style: none;
}
html,body{
    width: 100%;
    height: 100%;
    position: relative;
    font-family: Microsoft YaHe,Helvetica Neue, Helvetica, Arial, sans-serif;
    font-size: 14px;
}
a{
    text-decoration:none;
}
a:hover,a:focus{
    cursor:pointer;
    text-decoration:none;
    text-underline: none;
}