.video-container {
    position: relative;
    width: 100%;
    padding-bottom: 56.25%; /* 16:9 Aspect Ratio */
    margin-bottom: 20px;
}

iframe, video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
    border-radius: 4px;
}

@media screen and (max-width: 768px) {
    body {
        padding: 10px;
    }

    h1 {
        font-size: 20px;
        padding: 10px;
    }

    h5 {
        font-size: 14px;
    }

    .objective {
        padding: 15px;
    }
}