iphone - Viewport meta tag not working

Question

I am testing an app on iPhone. When it's in portrait, the resize is perfect. But when switching to landscape, it's zooming.

I have put {meta name="viewport" content="width=device-width,initial-scale=1.0"} but it seems to be not working.

I have also tried {meta name="viewport" content="width=device-width,initial-scale=1.0;maximum-scale=1.0"} but of no help.

Please help me !!!

Answer 1

<meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1, maximum-scale=1, user-scalable=0"></meta>

我认为 user-scaleable=0 是关键！