.video-container {
    position: relative;
    width: 100%;
    /* 16:9 aspect ratio */
    padding-bottom: 56.25%;
    height: 0;
    overflow: hidden;
    border-radius: 12px;
    /* optional: rounded corners */
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    /* optional: for nice styling */
}

.video-container iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 0;
}