@media (min-width: 750px) {
    .for_mob {
        display: none;
    }
}
@media (max-width: 550px) {
    .profile_content {
        display: block;
        width: 100%;
    }
    .profile_left img {
        border-radius: 50%;
    }
}
@media (max-width: 999px) {
    .right {
        display: none;
    }
}
@media (max-width: 749px) {
    .left {
        display: none;
    } 
    .copy_toast { bottom: 80px; }
    footer {
        margin-bottom: 70px;
    }
}