With or without the viewport meta tag zooming a page won't (and shouldn't) cause the page contents to re-flow. When zooming the viewport size isn't changing as

With or without the viewport meta tag zooming a page won't (and shouldn't) cause the page contents to re-flow. When zooming the viewport size isn't changing as if you had changed the window size. Switching orientations or opening a new window on iOS change the viewport dimensions and will cause a re-flow but not zooming. Besides setting the viewport width you can set a couple CSS properties on block elements to keep stuff more mobile friendly. I suggest `max-width: 100%;` and `overflow-x: scroll;`. This would keep for instance those `<pre>` blocks on your page from causing a horizontal scroll on mobile.