new Tether({ element: yellowBox, target: greenBox, attachment: 'top left', targetAttachment: 'bottom left' });new Tether({ element: yellowBox, target: greenBox, attachment: 'top left', targetAttachment: 'bottom left', optimizations: { moveElement: false } });new Tether({ element: yellowBox, target: greenBox, attachment: 'top left', optimizations: { gpu: false } });