body { background: #e9f8e5; font-family: "Hiragino Kaku Gothic ProN", Meiryo, sans-serif; color: #333; line-height: 2; padding: 3em 1.5em; } .container { max-width: 740px; background: white; padding: 2.5em; margin: auto; box-shadow: 0 0 12px rgba(0,0,0,0.05); border-radius: 10px; } h1 { font-size: 1…