Web page display problem on mobile phone_html/css_WEB-ITnose

Can the web page be displayed vertically by adding parameters to the head part of the html? Please give me some guidance~~~

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head in add


Try

add head


Try
It doesn’t work, I can change it to yours and it can be used horizontally= -=

I wrote two sets of css, hoping to load the wide one on the PC and the narrow one on the pad. As a result, the narrow set was indeed loaded when the pad was displayed in portrait mode. If I turned on the gravity sensor, and after horizontal positioning, it changed back to the wider css because the screen was wider T_T
The original parameters added were

<meta name="viewport" content="user-scalable=no, width=device-width" />

I don’t want the user to zoom,