I'll keep this here for future reference when I eventually forget what the meta tag should be and have to look it up again [[Meta viewport for mobile devices]]
Since I always forget it I've created a snippet for it. Below is a version for [[UltiSnips]] and it's also available as a [[VS Code]] snippet on my snippets page.
# Make the viewport scale correctly on mobile devices
snippet metav "Meta viewport"
<meta name="viewport" content="width=device-width, initial-scale=1" />
An example of how to use grid columns as "padding" [[CSS Grid tricks]]
Linked references
What's new in React 18