#login{
    background: #343957;
    height: calc(100vh - 10px) !important;
    /* height: 100%; */
}
.login-form h3{
    color: #373757;
    text-transform: uppercase;
}

#imagen{
    background: url('../images/imglogin.jpg');
    background-position: center;
    background-size: cover;
    transition: all .2s ease-in-out;
}