html, body{
    margin: 0 auto;
    padding: 0;
    max-width: 820px;
    width: 100%;
    background-color: #2b2828;
}
span, a, input, button,img{
    display: block;
}

.content{
}


.bg{
    width: 100%;
    height: 100%;
}

.footer{
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    margin: 0 auto;
    max-width: 820px;
    width: 100%;
    height: auto;
}