body { font-family: "Hiragino Kaku Gothic ProN", Meiryo, sans-serif; line-height: 1.9; max-width: 720px; margin: 3em auto; padding: 0 1em; background: #fffefa; color: #443f3f; } h1 { border-left: 6px solid #c3e6cb; padding-left: 0.5em; color: #5c9f7e; font-size: 1.8em; } p { margin: 1.4em 0; } .emoj…