html, body {
  margin: 0;
  padding: 0;
}
canvas {
  display: block;
}


body {
    font-family: Arial, sans-serif;
    margin: 20px;
    text-align: center; background-color:#4287f5;
}

.video-container, .image-container {
    margin-bottom: 20px;
}

img {
    max-width: 100%;
    height: auto;
}

.caption {
    color: #FFFFFF;
    font-size: 0.9em;
    margin-top: 5px;
}