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Difficulty Centering a Fixed Position Element within a Flexbox Container in Chrome

👀 Views: 25 đŸ’Ŧ Answers: 1 📅 Created: 2025-06-11
css flexbox chrome positioning HTML/CSS

I've spent hours debugging this and I've been banging my head against this for hours... I've looked through the documentation and I'm still confused about I'm having trouble centering a fixed position element within a flexbox container. I have a layout where I want a sidebar on the left and a content area on the right, but I also need to have a button that stays centered in the viewport regardless of scrolling. The button is currently positioned absolutely within a flexbox container, but it seems to be misaligned in Chrome. Here's the relevant CSS and HTML: ```html <div class="container"> <div class="sidebar">Sidebar</div> <div class="content"> <h1>Main Content Area</h1> </div> <button class="fixed-button">Click Me</button> </div> ``` ```css .container { display: flex; height: 100vh; } .sidebar { width: 250px; background-color: #f4f4f4; } .content { flex: 1; background-color: #ffffff; } .fixed-button { position: fixed; top: 50%; left: 50%; transform: translate(-50%, -50%); } ``` I've tried adjusting the `top` and `left` properties, but the button seems to be shifting based on the container's dimensions rather than the viewport. In Firefox, it works as expected, but in Chrome, it appears slightly off-center. I've also checked for any potential `box-sizing` issues and ensured there are no margins affecting the layout. Does anyone have any insights or suggestions for resolving this scenario? I'm currently using Chrome version 94.0.4606.61. I'm working on a CLI tool that needs to handle this. My development environment is Linux. Am I missing something obvious? This is part of a larger REST API I'm building. Is this even possible?