body { font-family:"Hiragino Kaku Gothic Pro","Meiryo",sans-serif; line-height:1.8; color:#333; padding:20px; max-width:800px; margin:auto; } h1, h2, h3, h4 { color:#1a73e8; margin-top:1.5em; } p, ul, ol { margin-bottom:1em; } .note { background:#fffbcc; border-left:4px solid #ffd500; padding:0.5em …