How to center buttons in Twitter Bootstrap 3?

Question

I am building a form in Twitter Bootstrap but I'm having issues with centering the button below the input in the form. I have already tried applying the center-block class to the button but that didn't work. How should I fix this?

Here is my code.

<!-- Button -->
<div class="form-group">
    <label class="col-md-4 control-label" for="singlebutton"></label>
    <div class="col-md-4">
        <button id="singlebutton" name="singlebutton" class="btn btn-primary center-block">
            Next Step!
        </button>
    </div>
</div>

Answer 1

<div class=container-fluid">
   <div class="col-sm-12 text-center">
       <button class="btn btn-primary" title="Submit"></button>
       <button class="btn btn-warning" title="Cancel"></button>
   </div>
</div>

Answer 2

According to the Twitter Bootstrap documentation: http://getbootstrap.com/css/#helper-classes-center

<!-- Button -->
<div class="form-group">
   <label class="col-md-4 control-label" for="singlebutton"></label>
   <div class="col-md-4 center-block">
      <button id="singlebutton" name="singlebutton" class="btn btn-primary center-block">
          Next Step!
       </button>
   </div>  
</div>

All the class center-block does is to tell the element to have a margin of 0 auto, the auto being the left/right margins. However, unless the class text-center or css text-align:center; is set on the parent, the element does not know the point to work out this auto calculation from so will not center itself as anticipated.

See an example of the code above here: https://jsfiddle.net/Seany84/2j9pxt1z/

Answer 3

You can do the following. It also avoids buttons overlapping.

<div class="center-block" style="max-width:400px">
  <a href="#" class="btn btn-success">Accept</a>
  <a href="#" class="btn btn-danger"> Reject</a>
</div>

Answer 4

Wrap the Button in div with "text-center" class.

Just change this:

<!-- wrong -->
<div class="col-md-4 center-block">
    <button id="singlebutton" name="singlebutton" class="btn btn-primary center-block">Next Step!</button>
</div>

To this:

<!-- correct -->
<div class="col-md-4 text-center"> 
    <button id="singlebutton" name="singlebutton" class="btn btn-primary">Next Step!</button> 
</div>

Edit

As of BootstrapV4, center-block was dropped #19102 in favor of m-*-auto

Answer 5

add to your style:

display: table; margin: 0 auto;

Answer 6

use text-align: center css property