h1 { display: none; } .only-pc { display: block; } .only-sp { display: none; } @media screen and (max-width: 768px) { .only-pc { display: none; } .only-sp { display: block; } } .u-text-ac5-pc, .u-text-ac5-sp { color: #353e4e !important; } .example { font-size: 14px; padding: 10px; } .img-no-radius { border-radius: 0px !important; display: block; margin: 0 auto; width: 100%; max-width: 430px; /* ✅ スマホサイズ幅 */ }