.ex-hd-sub{max-width:560px;color:var(--muted);margin-top:16px;font-size:1rem;line-height:1.5}.ex-hd-lead{text-wrap:pretty;max-width:620px;margin-top:20px;font-size:1.125rem;line-height:1.45}.ex-hd-note{max-width:620px;color:var(--muted);text-wrap:pretty;margin-top:16px;font-size:1rem;line-height:1.5}@media (width>=40rem){.ex-hd-sub,.ex-hd-note{font-size:1.125rem}.ex-hd-lead{font-size:1.25rem}}