Responsive fitness menu

Place corresponding viewport tag in index.php of template:

<meta name="viewport" content="width=1280, initial-scale=1">

is almost perfect , it remains only a minor inconvenience for autoadapt to the screen I need to double-tap on the screen of my phone, you can solve also this?

Try just:

<meta name="viewport" content="width=1280">

I've solved with this line of code:

<meta name="viewport" content="width=1280, initial-scale=-1">