@media screen and (max-width:689px) {
    .grp-login-blk {
        width: 100%;
    }
    .grp-login-blk .cell {
        width: calc(100% - 30px);
    }
    .log {
    position: absolute;
    top: 20px;
    left: 0;
    right: 0;
    -webkit-transform: none;
    -ms-transform: none;
    -o-transform: none;
    transform: none;
}

}

@media screen and (max-width:360px) {
    
    .login-blk {
        width: 300px;
    }

}