html, body{
    margin:0;
    padding:0;
    line-height:normal;
}
*{
    box-sizing: border-box;
}
img{
    display:block;
    max-width:100%;
}
.container{
    max-width:600px;
    margin:0 auto;
    position:relative;
}
.btn-lp{
    position:fixed;
    bottom:10px;
    left:0;
    width:100%;
    text-align:center;
}
.btn-lp img{
    display:inline-block;
}


@media (max-width: 480px) {
    .btn-lp img{
        width:90%;
    }
}