.text-error{
    color: rgb(177, 2, 2);
}

.icon{
    font-size: 60px !important;
}

.bg-image{
    background-image: url(../img/course/meeting\ \(2\).jpg);
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
    opacity: 90%;
    padding: 60px !important;
    
}

.bg-image-header{
    background-image: url(../img/course/meeting\ \(1\).jpg);
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
    opacity: 90%;
    padding: 150px !important;
    
    
}

.card:hover{
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.475);
    transition: box-shadow 0.3s ease;
}

@media (max-width: 900px) {
    .hidden-logo{
        display: none !important;
    }
    .show-logo{
        display: block !important;
    }

    .qr-code{
        width: 105%;
    }
}

@media (min-width: 900px) {
    .show-logo{
        display: none !important;
    }

    .qr-code{
        width: 360px !important;
    }
}

a:active{
    background-color: blue;
}