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How do I center a div of one column size within the container (12 columns) in Twitter Bootstrap 3?
.centered { background-color: red; }<!-- Latest compiled and minified CSS --> <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u" crossorigin="anonymous"> <body class="container"> <div class="col-lg-1 col-offset-6 centered"> <img data-src="holder.js/100x100" alt="" /> </div> </body>I want a div, with a class .centered to be centered within the container. I may use a row if there are multiple divs, but for now I just want a div with the size of one column centered within the container (12 columns).
I am also not sure the above approach is good enough as the intention is not to offset the div by half. I do not need free spaces outside the div and the contents of the div shrink in proportion. I want to empty space outside the div to be evenly distributed (shrink till the container width is equal to one column).
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My approach to center columns is to use display: inline-block for columns and text-align: center for the container parent. You just have to add the CSS class 'centered' to the row .
Bootstrap 5 (update 2021)Columns can be centered using offset, auto-margins or justify-content-center (flexbox).
row is now display:flex you can simply use align-self-center on any column to vertically center it... or, use align-items-center on the entire . row to vertically center align all col-* in the row...
There are two approaches to centering a column <div> in Bootstrap 3:
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 column of size 2 would be centered by adding an offset of 5, that's (12-2)/2.
In markup this would look like:
<div class="row"> <div class="col-md-2 col-md-offset-5"></div> </div> Now, there's an obvious drawback for this method. It only works for even column sizes, so only .col-X-2, .col-X-4, col-X-6, col-X-8, and col-X-10 are supported.
margin:auto)You can center any column size by using the proven margin: 0 auto; technique. You just need to take care of the floating that is added by Bootstrap's grid system. I recommend defining a custom CSS class like the following:
.col-centered{ float: none; margin: 0 auto; } Now you can add it to any column size at any screen size, and it will work seamlessly with Bootstrap's responsive layout:
<div class="row"> <div class="col-lg-1 col-centered"></div> </div> Note: With both techniques you could skip the .row element and have the column centered inside a .container, but you would notice a minimal difference in the actual column size because of the padding in the container class.
Update:
Since v3.0.1 Bootstrap has a built-in class named center-block that uses margin: 0 auto, but is missing float:none, you can add that to your CSS to make it work with the grid system.
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