<meta name="viewport" content="width=device-width, initial-scale=1.0">

Attributes:

  • width: CSS pixel width or device-width.
  • height: Analogous to width (rarely used).
  • initial-scale: Scale at first load.
  • maximum-scale / minimum-scale: User zoom bounds.
  • user-scalable: Allow manual zoom (yes/no or 0/1 in older implementations).

Keep initial-scale=1 to avoid unexpected zoom; avoid disabling zoom for accessibility.