.banner {
    width: 100%;
    height: 70vh;
    background-image: url("../images/Banner-ads.png");
    background-position: center;
    background-size: cover;
    position: relative;

    display: flex;
    align-items: center;
    justify-content: flex-start;
    padding-left: 10%;
}
.banner::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.4);
}
.desc-banner {
    position: relative;
    z-index: 2;
    max-width: 600px;
}

.desc-banner h3 {
    color: #fff;
    font-size: 1.8rem;
    margin-bottom: 10px;
}

.desc-banner h1 {
    color: #fff;
    font-size: 3.5rem;
    line-height: 1.2;
}

.button-banner {
    display: inline-block;
    margin-top: 20px;
    background-color: #00003cff;
    color: #fff;
    text-decoration: none;
    font-weight: 600;
    padding: 12px 40px;
    border-radius: 5px;
    transition: 0.3s;
}

.button-banner:hover {
    background-color: #fff;
    color: #00003cff;
}

@media (max-width: 986px) {
    .banner {
        width: 100%;
        height: 70vh;
        background-image: url("../images/Banner-ads.png");
        background-position: center;
        background-size: cover;

        display: flex;
        justify-content: center;
        align-items: center;
        padding: 20px;
        text-align: center;
    }

    .desc-banner {
        position: relative;
        z-index: 2;
        max-width: 100%;
    }

    .desc-banner h3 {
        color: #fff;
        font-size: 1.3rem;
    }
    
    .desc-banner h1 {
        font-size: 2.2rem;
        color: #fff;
    }

    .button-banner {
        padding: 12px 40px;
    }
}