1. 기본 하나를 클릭하고 shift 누른상태에서 다른하나를 클릭하면 그 사이의 체크박스들에 체크가 되게한다. This is an inbox layout. Check one item Hold down your Shift key Check a lower item Everything in between should also be set to checked Try to do it without any libraries Just regular JavaScript Good Luck! Don't forget to tweet your result! 2. 결과 This is an inbox layout. Check one item Hold down your Shift key Check a lower item Every..