.chapter_photo01{aspect-ratio:30/19}.chapter_photo02{aspect-ratio:600/433}.chapter_photo03{aspect-ratio:1200/433}.chapter_photo04{aspect-ratio:400/189}.chapter_photo05{aspect-ratio:389/219}.chapter_photo06{aspect-ratio:389/219}.chapter_photo07{aspect-ratio:400/189}.chapter_photo08{aspect-ratio:30/19}.chapter_photo09{aspect-ratio:667/307}.chapter_photo10{aspect-ratio:621/332}.chapter_photo11{aspect-ratio:292/163}.chapter_step01{aspect-ratio:3/2}.chapter_step02{aspect-ratio:235/157}.chapter_step03{aspect-ratio:473/238}.chapter_sidepic{aspect-ratio:98/65}.chapter_daiken_logo{aspect-ratio:429/139}