Frontend Interview Problem

• Modify only foreground.css to match the background
• Do NOT look at the background.css file
• Use display: flex
• Width of the sidebar is 1/5 of the width of the layout
• Each sidebar item is 1/3 the height of the sidebar
• The height of the header is 1/4 the height of the layout
• The height of the main is 1/2 the height of the layout
• The height of the footer is 1/4 the height of the layout