I can not get the buttons to fit exactly below the last table and in IE they change they become loose
Friend in IE is unlikely to do because the design that is functional in all popular browsers (Google Chrome, Firefox, Vivaldi, Safari ...) these designs are broken in IE because Microsoft wanted to create their own standards that after time recommended to all its users to stop using that browser and I tell you from experience that working with examples of IE is not recommended but if you want to try testing the CSS property of box-sizing: border-box; to the element that you want to overlap or use z-index: 1000; If it works, tell me.