CSS Grid: Task Board

https://www.codecademy.com/paths/front-end-engineer-career-path/tracks/fecp-making-a-website-responsive/modules/fecp-learn-css-grid/projects/css-grid-task-board

hi, I’ve been struggling with coding the last Grid project. I followed the tasks and watched Youtube. Yet, my last board has space and doesn’t the same as the first and the second. Could you tell me how can I fix it??