.login-container {
    width: 90%;
    margin: 0 auto;
    margin-top: 70px;
}

.pic {
    width: 50%;
}

 /* Small devices (landscape phones, 576px and up) */
 @media (min-width: 576px) { 
    
}

 /* Medium devices (tablets, 768px and up) */
@media (min-width: 768px) { 
    .login-container {
        width: 40%;
        margin: 0 auto;
        margin-top: 70px;
    }
}

/* Large devices (desktops, 992px and up) */
@media (min-width: 992px) {

}

 /* Extra large devices (large desktops, 1200px and up) */
@media (min-width: 1200px) {

}