{max-width: 500px, display: block, margin: 0 auto, border: 5px solid black} YT: Fall asleep in under 120 seconds - Military hack
{max-width: 500px, display: block, margin: 0 auto, border: 5px solid black}{max-width: 500px, display: block, margin: 0 auto, border: 5px solid black}