@media all and (min-width: 768px) {
    .container-lg {
        padding: 2rem 5rem;
    }
}

.img_presentation {
    float: right;
}

.text_acceuil img,
iframe img,
.texte_presentation img
{
    max-width: 100%;
}

.brand {
    color: white;
    width: 100%;
    height: 100vh;
}

.brand .title {
    font-size: 2rem;
    text-align: center;
}

.text {
    padding-top: 30%;
}

.main_links {
    display: flex;
    justify-content: space-around;
    margin: 2rem;
    flex-direction: column;
}

@media only screen and (min-width: 600px) {
    .main_links {
        flex-direction: row;
    }
}

.main_links a:hover {
    filter: drop-shadow(2px 4px 6px rgba(0, 0, 0, 0.3));
}

.main_links a {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.main_links i {
    font-size: 5rem;
    margin-bottom: 1rem;
}