Is there any way to center html elements vertically or horizontally inside the main parents?
13 Answers
Update: while this answer was likely correct back in early 2013, it should not be used anymore. The proper solution uses offsets, like so:
class="mx-auto"
As for other users suggestion there are also native bootstrap classes available like:
class="text-center"
class="pagination-centered"
- 
                    3Using `text-center` for layout is very bad practice. The proper way to align columns in Bootstrap is by using `col-XX-offset-Y` classes. http://getbootstrap.com/css/#grid-offsetting. This answer was likely right in 2013 but should not be used anymore today. – Niels Keurentjes Oct 12 '16 at 21:44
From the Bootstrap documentation:
Set an element to
display: blockand center viamargin. Available as a mixin and class.
<div class="center-block">...</div>
 
    
    - 143,271
- 52
- 317
- 404
 
    
    - 913
- 6
- 6
If you are trying to center an image in a div, but the image won't center, this could describe your problem:
<div class="col-sm-4 text-center">
    <img class="img-responsive text-center" src="myPic.jpg" />
</div>
The img-responsive class adds a display:block instruction to the image tag, which stops text-align:center (text-center class) from working.
SOLUTION:
<div class="col-sm-4">
    <img class="img-responsive center-block" src="myPic.jpg" />
</div>
Adding the center-block class overrides the display:block instruction put in by using the img-responsive class. Without the img-responsive class, the image would center just by adding text-center class
Also, you should know the basics of flexbox and how to use it, since Bootstrap 4 now uses it natively.
Here is an excellent, fast-paced video tutorial by Brad Schiff
Here is a great cheat sheet
In Bootstrap 4, the centering methods have changed.
Horizontal Center in Bootstrap 4
- text-centeris still used for- display:inlineelements
- mx-autoreplaces- center-blockto center- display:flexchildren
- offset-*or- mx-autocan be used to center grid columns
mx-auto (auto x-axis margins) will center display:block or display:flex elements that have a defined width, (%, vw, px, etc..). Flexbox is used by default on grid columns, so there are also various flexbox centering methods.
Demo Bootstrap 4 Horizontal Centering
For vertical centering in BS4 see https://stackoverflow.com/a/41464397
 
    
    - 20,799
- 66
- 75
- 101
 
    
    - 351,302
- 90
- 710
- 624
You may directly write into your CSS file like this:
.content {
  position: absolute;
  top: 50%;
  left:50%;
  transform: translate(-50%,-50%);
  }<div class = "content" >
  
   <p> some text </p>
  </div>- 
                    1This seems to ignore the fact that this is a Bootstrap question, so interested users will almost certainly have other Bootstrap-specific classes which cause this not to work. – TylerH Dec 16 '21 at 16:57
i use this
<style>
    html, body {
        height: 100%;
        margin: 0;
        padding: 0 0;
    }
    .container-fluid {
        height: 100%;
        display: table;
        width: 100%;
        padding-right: 0;
        padding-left: 0;
    }
    .row-fluid {
        height: 100%;
        display: table-cell;
        vertical-align: middle;
        width: 100%;
    }
    .centering {
        float: none;
        margin: 0 auto;
    }
</style>
<body>
    <div class="container-fluid">
        <div class="row-fluid">
            <div class="offset3 span6 centering">
                content here
            </div>
        </div>
    </div>
</body>
 
    
    - 2,678
- 10
- 56
- 104
 
    
    - 193
- 1
- 4
- 
                    2Doesn't work in certain cases (see [comment on essentially the same answer](http://stackoverflow.com/questions/10088706/twitter-bootstrap-how-to-center-elements-horizontally-or-vertically#comment24195315_15853518) and doesn't make use of [Bootstrap-specific classes for centering](http://getbootstrap.com/css/#helper-classes-center). – Dan Dascalescu Oct 07 '14 at 03:25
for horizontaly centering you can have something like this:
.centering{
float:none;
margin:0 auto
}
 <div class="span8 centering"></div>
 
    
    - 302
- 2
- 11
 
    
    - 2,779
- 2
- 17
- 20
- 
                    5Does not work (at least not in current implementation), when directly used in an image: ``. Surrounding `img` with parent `div` and giving `.text-center` or `.pagination-centered` class to parent works like a charm. – trejder May 28 '13 at 10:56 
- 
                    3to center an element with margin:0 auto, you need to add a width to that element. In the above example there is no width specified because span8 has a width in boobstrap but your image doesn't sowill center horizontally that image inside the parent – Raul Oct 25 '13 at 04:37 
- 
                    4
With Bootstrap 4 you can use flex-based HTML classes d-flex, justify-content-center, and align-items-center:
<link href="https://cdn.jsdelivr.net/npm/bootstrap@4.6.0/dist/css/bootstrap.min.css" rel="stylesheet"/>
<div class="d-flex justify-content-center align-items-center">
    <button type="submit" class="btn btn-primary">Create</button>
</div>Source: Bootstrap 4.1
- 
                    The only suggestion that worked for me when trying to align "export" button os jQuery datatable. +1 – NoBullMan Mar 04 '22 at 17:50
I like this solution from a similar question:
Use bootstrap's
text-centerclass on the actual table data<td>and table header<th>elements. So
<td class="text-center">Cell data</td>and<th class="text-center">Header cell data</th>
 
    
    - 20,799
- 66
- 75
- 101
 
    
    - 529
- 5
- 12
I discovered in Bootstrap 4 you can do this:
center horizontal is indeed text-center class
center vertical however using bootstrap classes is adding both mb-auto mt-auto so that margin-top and margin bottom are set to auto.
 
    
    - 8,864
- 6
- 44
- 85
- 
                    `text-center` worked for me. I was trying to center a button in a `md-12` div – Gitau Harrison Oct 27 '20 at 06:59
- 
                    
Bootstrap 4's use of flex properties solve this. You can use these classes:
<link href="https://cdn.jsdelivr.net/npm/bootstrap@4.6.0/dist/css/bootstrap.min.css" rel="stylesheet"/>
<div class="d-flex justify-content-center align-items-center">
    <button type="submit" class="btn btn-primary">Create</button>
</div>These classes will center your content horizontally and vertically.
 
    
    - 20,799
- 66
- 75
- 101
 
    
    - 460
- 5
- 10
for bootstrap4 vertical center of few items
d-flex for flex rules
flex-column for vertical direction on items
align-items-center for horizontal centering
justify-content-center for vertical centering
style='height: 300px;' must have for set points where center be calc or use h-100 class
    <link href="https://cdn.jsdelivr.net/npm/bootstrap@4.6.0/dist/css/bootstrap.min.css" rel="stylesheet"/>
<div class="d-flex flex-column align-items-center justify-content-center bg-secondary" style="
    height: 300px;
">
    <div class="p-2 bg-primary">Flex item</div>
    <div class="p-2 bg-primary">Flex item</div>
    <div class="p-2 bg-primary">Flex item</div>
</div> 
    
    - 552
- 1
- 8
- 12
- 
                    
- 
                    edit answer for new version of bootstrap and add "run code snippet". my answer more correct. @TylerH run code snippet – Ramil Gilfanov Dec 17 '21 at 19:27
- 
                    
 
     
     
     
     
    