h1 {
    margin: 0;
}

.btn {
    cursor: pointer;
}

#youtube {
    color: white;
    margin-right: 20px;
}

#video, #audio, #btns-line {
    margin: 30px auto 10px auto;
    width: 50%;
}

#audio audio, #video video {
    width: 100%;
}

#btns-line, #media-btns {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

@media (min-width: 769px) and (max-width: 1024px) {
    h1, .btn {
        font-size: 1.8rem;
    }
}

@media (max-width: 768px) {
    #title {
        width: 95%;
    }

    h1, .btn {
        font-size: 1.6rem;
    }

    #video, #audio, #btns-line {
        margin: 30px auto 10px auto;
        width: 95%;
    }

    @media (max-width: 400px) {
        h1, .btn {
            font-size: 1.4rem;
        }
    }
}