body { background-color: #cce6ff; /* clear blue sky */ color: #333; font-family: "Hiragino Kaku Gothic ProN", "游ゴシック体", YuGothic, sans-serif; line-height: 1.9; padding: 2em; } h1 { font-size: 1.8em; text-align: center; margin-bottom: 0.5em; } .section { margin-bottom: 2em; } 🌍パワー半導体って、電気の力を操る「血管」や「水…