.instagram-button {
    position: fixed;
    width: 63px;
    height: 63px;
    bottom: 85px;
    left: 25px;
    border-radius: 50px;
    text-align: center;
    font-size: 30px;
    z-index: 999997;
    box-shadow: 0px 0px 0px #888;
}

@media (max-width: 768px) {
    .instagram-button {
        width: 63px;
        height: 63px;
        bottom: 75px;
        left: 10px;
        font-size: 30px;
    }
}

.disabled:after{
    content:"agora!!"
}