I am currently working on designing a website without using the meta viewport tag. My goal is to ensure that my website displays properly on both mobile and desktop devices. I have encountered an issue with the comparison between the home page (index) and inside pages. While the header and footer display correctly on the home page, the header on the inside page looks good but not as well as the home page, and the footer does not show properly in full width. I would appreciate any help on this matter. Thank you for your assistance. The problem seems to occur only on mobile and tablet devices.