.image-container{
    background: url('../images/fondo.jpg') center no-repeat;
    background-size: cover;
    height: 100vh;
}
.form-container{
    background-color: #f5f5f5;
    display: flex;
    justify-content: center;

}
.form-box
{
    /*display: flex;
    flex-direction: column;
    justify-content: center;*/
    min-height: 100vh;
}
.form-box h4{
    font-weight: bold;
    color: #0091ea;
}
.card-header
{
    font-weight: bold;
    font-size: 1.2em;
    text-align: center;
}