object-fit
aspect-ratio
.video-container {
width: 100%;
aspect-ratio: 16 / 9;
}
clip-path
Triangle
clip-path: circle(50%);
clip-path: polygon(50% 0%, 0% 100%, 100% 100%);
backdrop-filter
background: rgba(255, 255, 255, 0.2);
backdrop-filter: blur(10px);