nav ul li a {
    padding: 0px 0px;
    font: normal normal bold 26px "Poppins-black";
    margin-left: 20px;
}

.texto-principal h2 {
    color: white;
    font: normal normal bold 50px "Poppins-black";
    padding-bottom: 25px;

}

nav ul li a:hover {
    background-color: white;
    border-radius: 0px 0px;
    border-style: none;
}


.texto-principal h3 {
    color: yellow;
    font-family: 'Poppins-Medium ';
    font-size: 48px;
    margin-bottom: 52px;

}

.video-aula {

    margin-bottom: 400px;
}

.video-aula .video1-section .image-video {
    width: 30%;
    transition: 400ms linear;
}