How to record on your iPhone and iPad (READ DESC I FORGOT SOMETHING)

IOS 11 ONLY | AND ALSO SORRY I DIDN'T TELL YOU WHERE IT IS, IN YOUR IPAD OR IPHONE SWIPE UP FROM THE BOTTOM OF THE SCREEN TO SEE IT IF YOU ARE DONE DOING THE TUTORIAL AND IF YOU WANNA STOP CLICK THE RED LINE AND THEN CLICK STOP RECORDING