html.mdl-js :not(div.notFound) div.content-card__title + div.content-card__text h1:first-of-type {display: none;}
→ arctic

(有錯誤訊息
)
)
)參考:
html.mdl-js :not(div.notFound) div.content-card__title + div.content-card__text h1:first-of-type {display: none;}