No meta-viewport tag found. Please explicitly specify one to prevent unexpected behavioural changes in future versions. For more help https://developer.mozilla.org/en/docs/Mozilla/Mobile/Viewport_meta_tag
Heb ganfod meta-viewport. Pennwch un i atal newidiadau ymddygiad annisgwyl mewn fersiynau i'r dyfodol. Am gymorth oellachhttps://developer.mozilla.org/en/docs/Mozilla/Mobile/Viewport_meta_tag