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CSS Media Query Not Applying Styles as Expected on Mobile Devices Using Bootstrap 5

πŸ‘€ Views: 17 πŸ’¬ Answers: 1 πŸ“… Created: 2025-06-03
css bootstrap media-queries CSS

I'm trying to configure I'm updating my dependencies and I'm learning this framework and I'm working with an scenario where my media queries are not applying styles correctly on mobile devices when using Bootstrap 5. I have defined breakpoints in my CSS, but it seems that the styles are ignored or overridden by Bootstrap's default styles. For example, I want to change the font size for a header on screens smaller than 576px. Here’s what I have in my CSS: ```css @media (max-width: 575.98px) { h1 { font-size: 24px; } } ``` However, on mobile devices, the header remains at the default Bootstrap size of 32px. I've also tried adding the `!important` tag to my CSS rule like this: ```css @media (max-width: 575.98px) { h1 { font-size: 24px !important; } } ``` But it still doesn't work. I've checked that my CSS file is linked correctly after the Bootstrap CSS in the HTML. Here’s a snippet of my HTML structure: ```html <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/5.1.3/css/bootstrap.min.css"> <link rel="stylesheet" href="styles.css"> <title>Test Page</title> </head> <body> <h1>Hello World</h1> </body> </html> ``` I'm also using Google Chrome's DevTools to check the computed styles, but it shows that my media query is not being applied at all. I've cleared the cache, and even tried hard-reloading the page without success. Is there something I'm missing in the setup, or is there a specific quirk in Bootstrap 5 that I need to address? Any help would be greatly appreciated! This is part of a larger service I'm building. This issue appeared after updating to Css LTS. Is there a simpler solution I'm overlooking? I recently upgraded to Css 3.10. What's the correct way to implement this?