body {
  font-family: Arial, sans-serif;
  padding: 20px;
  max-width: 900px;
  margin: auto;
  background: #f7f7f7;
}
.video-row {
  display: flex;
  gap: 20px;
  margin-top: 20px;
}
.video-block {
  flex: 1;
  text-align: center;
}