Following is a list of solutions to centering things in CSS horizontally. The snippet includes all of them. html { font: 1.25em/1.5 Georgia, Times, serif; } pre { color: #fff; background-color: #333; padding: 10px; } blockquote { max-width: 400px; background-color: #e0f0d1; } blockquote > p { font-style: italic; } blockquote > p:first-of-type::before { content: open-quote; … Read more
If the left and right boxes would be exactly the same size, I get the desired effect. However when one of the two is a different size the centered box is not truly centered anymore. Is there anyone that can help me? Here’s a method using flexbox to center the middle item, regardless of the … Read more
The simplest (but possibly inaccurate) method is to use tk::PlaceWindow, which takes the pathname of a toplevel window as an argument. The main window’s pathname is . import tkinter root = tkinter.Tk() root.eval(‘tk::PlaceWindow . center’) second_win = tkinter.Toplevel(root) root.eval(f’tk::PlaceWindow {str(second_win)} center’) root.mainloop() The problem Simple solutions ignore the outermost frame with the title bar and … Read more
You basically need to set top and left to 50% to center the left-top corner of the div. You also need to set the margin-top and margin-left to the negative half of the div’s height and width to shift the center towards the middle of the div. Thus, provided a <!DOCTYPE html> (standards mode), this … Read more
There are two approaches to centering a column <div> in Bootstrap 3: Approach 1 (offsets): The first approach uses Bootstrap’s own offset classes so it requires no change in markup and no extra CSS. The key is to set an offset equal to half of the remaining size of the row. So for example, a … Read more
Bootstrap 5 (Updated 2021) Bootstrap 5 is still flexbox based so vertical centering works the same way as it did in Bootstrap 4. For example, align-items-center (flex-direction: row) and justify-content-center (flex-direction: column) can used on the flexbox parent (row or d-flex). Centering examples in Bootstrap 5 Vertical center (don’t forget the parent must have a … Read more
Below is the best all-around solution I could build to vertically and horizontally center a fixed-width, flexible height content box. It was tested and worked for recent versions of Firefox, Opera, Chrome, and Safari. .outer { display: table; position: absolute; top: 0; left: 0; height: 100%; width: 100%; } .middle { display: table-cell; vertical-align: middle; … Read more
Update Aug 2020 Although the below is still worth reading for the useful info, we have had Flexbox for some time now, so just use that, as per this answer. You can’t use: vertical-align:middle because it’s not applicable to block-level elements margin-top:auto and margin-bottom:auto because their used values would compute as zero margin-top:-50% because percentage-based … Read more
The best approach in modern browsers is to use flexbox: #Login { display: flex; align-items: center; } Some browsers will need vendor prefixes. For older browsers without flexbox support (e.g. IE 9 and lower), you’ll need to implement a fallback solution using one of the older methods. Recommended Reading Browser support A Guide to Flexbox … Read more
Updated Answer Updating because I noticed it’s an active answer, however Flexbox would be the correct approach now. Live Demo Vertical and horizontal alignment. #wrapper { display: flex; align-items: center; justify-content: center; } Just horizontal (as long as the main flex axis is horizontal which is default) #wrapper { display: flex; justify-content: center; } Original … Read more