确保添加:

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

到你的.

我遇到了类似的问题，我错误地认为这只是视口宽度的问题.

I had a similar problem and I mistakenly thought it was just a matter of viewport width.

更新:查看@NicolasBADIA 答案以获得更完整的版本.

Update: check out @NicolasBADIA answer for a more complete version.