.fondolibre {
    background: #ffffff;
    height: 100vh;
}
.auth {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    min-height: 100%;
}
 
.auth-header {
    margin-bottom: -3rem;
    padding-top: 6rem;
    padding-bottom: 3rem;
    position: relative; 
    width: 100%;
    /*background-color: #247ba0;*/
    color: #ffffff;
    text-align: center;
    background-size: cover;
}

.auth-form {
    padding: 3rem 2rem 1rem;
    max-width: 420px;
    border-radius: 0.25rem;
    background-color: #f7f7f7;
    box-shadow: 0 0 0 1px rgba(20, 20, 31, 0.05), 0 1px 3px 0 rgba(20, 20, 31, 0.15);
}
.auth-form {
    position: relative;
    width: 100%;
    z-index: 1;
}
.btn-primary {
    color: #ffffff;
    background-color: #3fa9f5;
    border-color: #ff9300;
}

.sizeletra {
    font-size: 1.125rem;
}

.fuente {
    font-size: 12px !important;
}
.color-primary {
    color: #ffffff;
    background-color: #3fa9f5;
    border-color: #ff9300;
}

.cardsite {
    padding: 1.25rem;
}