Iframe call cannot be displayed in full screen-php Tutorial

I have a php page for the mobile terminal. I called another page with iframe, but it cannot be displayed in full screen. the code is as follows & amp; lt; linkrel & quot; stylesheet & quot; type & quot; textcss & quot; href & quot; res. wx. qq. commmbizwapzh_CNhtmleditionstylepageappm... I have a php page for the mobile phone end. I called another page with iframe, but it cannot be displayed in full screen. the code is as follows:





Title

If I change the width and height to 100%, the page will be displayed in full screen, but the text and background will remain unchanged. please advise me how to change the code

Reply content:

I have a php page for the mobile phone end. I called another page with iframe, but it cannot be displayed in full screen. the code is as follows:





Title

If I change the width and height to 100%, the page will be displayed in full screen, but the text and background will remain unchanged. please advise me how to change the code