html {
  scroll-behavior: smooth;
}
.w-full {
  width: 100% !important;
}
.indent-0 {
  text-indent: 0 !important;
}
.lecture_movie {
    width: 100%;
}
.lecture_movie video {
    width: 100%;
    aspect-ratio: 16/9;
    display: block;
}