Centering elements in CSS can be confusing because vertical, horizontal, and combined centering require different properties and techniques. Many online solutions work for specific cases but may rely on hacks or assumptions. A large number of proposed methods exist, including legacy and modern approaches, yet many are not recommended. After filtering out hacky options and removing redundant variations, the number of truly valid and unique techniques is much smaller, likely under 15. Reliable centering depends on the container and element context, including whether flexbox, grid, inline content, or positioning is involved. Safer modern patterns include techniques such as safe centering, text-box centering, and centering in anchor positioning.
"Despite the countless number of online resources (even CSS-Tricks has a full guide on it), it's easy to get confused when trying to center an element, whether vertically, horizontally, or both). I am sure you will find something that works by googling or trying different combinations. But do you really understand why the code you picked works? Is it the right one for your use case? Because it really does depend and require consideration!"
"No, centering is not hard. Considering all the different and various ways to center an element, it's an easy task that generally requires two or three lines of code. But, how many ways do we have to center an element? I did the count, and I was able to enumerate 100 different ways to center an element vertically and horizontally within a container."
"Yes, 100 is a ridiculously high number for what should be a simple task, but that number is misleading. If you check the list, you will find I marked about 60 of them in red, meaning they are hacky and not recommended. This leaves us with roughly 30 valid approaches. And within those valid options, many are basically the same, only written differently, so we can consider them redundant."
"Stay with me because we will explore hidden tricks and modern features that you may not know - safe centering, text-box, centering in anchor positioning, etc."
Read at CSS-Tricks
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