How to center the images in the Owl Carousel - html

Question

My Owl Carousel contains pictures of different width and height. How do I align them in the middle - both horizontally and vertically?
$("#owl-example").owlCarousel({
navigation: true
});
<link rel="stylesheet" href="//cdnjs.cloudflare.com/ajax/libs/owl-carousel/1.3.3/owl.carousel.min.css">
<link rel="stylesheet" href="//cdnjs.cloudflare.com/ajax/libs/owl-carousel/1.3.3/owl.theme.min.css">
<div id="owl-example" class="owl-carousel">
<div><img src="https://via.placeholder.com/120x120/69c/fff/" alt=""></div>
<div><img src="https://via.placeholder.com/200x200/c69/fff/" alt=""></div>
<div><img src="https://via.placeholder.com/160x160/9c6/fff/" alt=""></div>
<div><img src="https://via.placeholder.com/240x240/fc6/fff/" alt=""></div>
<div><img src="https://via.placeholder.com/160x160/9c6/fff/" alt=""></div>
<div><img src="https://via.placeholder.com/200x200/c69/fff/" alt=""></div>
<div><img src="https://via.placeholder.com/120x120/69c/fff/" alt=""></div>
</div>
<script src="//code.jquery.com/jquery-1.12.4.min.js"></script>
<script src="//cdnjs.cloudflare.com/ajax/libs/owl-carousel/1.3.3/owl.carousel.min.js"></script>

Answer 1

With owl carousel version 2.1.1 and CSS3 Flexbox, just add the style:
.owl-carousel .owl-stage {
display: flex;
align-items: center;
}
See the snippet:
$( document ).ready( function() {
$( '.owl-carousel' ).owlCarousel({
autoplay: true,
margin: 2,
loop: true,
responsive: {
0: {
items:1
},
200: {
items:3
},
500: {
items:4
}
}
});
});
.owl-carousel .owl-stage {
display: flex;
align-items: center;
}
.owl-carousel .caption {
text-align: center;
}
<link href="https://cdnjs.cloudflare.com/ajax/libs/OwlCarousel2/2.2.1/assets/owl.carousel.min.css" rel="stylesheet"/>
<div class="owl-carousel">
<div class="item">
<img src="https://via.placeholder.com/350x200/?text=1">
<div class="caption">Caption 1</div>
</div>
<div class="item">
<img src="https://via.placeholder.com/255x200/?text=2">
<div class="caption">Caption 2</div>
</div>
<div class="item">
<img src="https://via.placeholder.com/627x200/?text=3">
<div class="caption">Caption 3</div>
</div>
<div class="item">
<img src="https://via.placeholder.com/627x300/?text=4">
<div class="caption">Caption 4</div>
</div>
<div class="item">
<img src="https://via.placeholder.com/627x400/?text=5">
<div class="caption">Caption 5</div>
</div>
<div class="item">
<img src="https://via.placeholder.com/255x200/?text=6">
<div class="caption">Caption 6</div>
</div>
</div>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/OwlCarousel2/2.2.1/owl.carousel.min.js"></script>

Answer 2

The Owl Carousel creates additional blocks within your layout. To add CSS properties correctly, you need to work with this HTML structure:
<div id="owl-demo" class="owl-carousel owl-theme">
<div class="owl-wrapper-outer">
<div class="owl-wrapper">
<div class="owl-item">
<div>
<img src="" alt="">
</div>
</div>
<div class="owl-item">
<div>
<img src="" alt="">
</div>
</div>
</div>
</div>
</div>
Moreover the carousel adds a style attribute to all blocks. For example, a block with the .owl-wrapper class receives the display property with the value of block. So you have to use an !important declaration in your CSS.
To obtain a horizontal alignment, you can simply add text-align: center; property to each .owl-item > div.
To align vertically, you can turn the carousel items in table cells. But do not forget to cancel the float property for them.
Let us arrange all of the changes as a new .owl-centered class. Please check the result:
Owl Carousel 2.3.4: https://codepen.io/glebkema/pen/vYKMgzj
Owl Carousel 1.3.3: https://codepen.io/glebkema/pen/BzgZxX
$("#owl-example").owlCarousel({
navigation: true
});
#import url('//cdnjs.cloudflare.com/ajax/libs/owl-carousel/1.3.3/owl.carousel.min.css');
#import url('//cdnjs.cloudflare.com/ajax/libs/owl-carousel/1.3.3/owl.theme.min.css');
.owl-centered .owl-wrapper {
display: table !important;
}
.owl-centered .owl-item {
display: table-cell;
float: none;
vertical-align: middle;
}
.owl-centered .owl-item > div {
text-align: center;
}
<div id="owl-example" class="owl-carousel owl-centered">
<div><img src="https://via.placeholder.com/120x120/69c/fff/" alt=""></div>
<div><img src="https://via.placeholder.com/200x200/c69/fff/" alt=""></div>
<div><img src="https://via.placeholder.com/160x160/9c6/fff/" alt=""></div>
<div><img src="https://via.placeholder.com/240x240/fc6/fff/" alt=""></div>
<div><img src="https://via.placeholder.com/160x160/9c6/fff/" alt=""></div>
<div><img src="https://via.placeholder.com/200x200/c69/fff/" alt=""></div>
<div><img src="https://via.placeholder.com/120x120/69c/fff/" alt=""></div>
</div>
<script src="//code.jquery.com/jquery-1.12.4.min.js"></script>
<script src="//cdnjs.cloudflare.com/ajax/libs/owl-carousel/1.3.3/owl.carousel.min.js"></script>

Answer 3

This works for me:
#media (max-width:500px) {
.owl-carousel .owl-item {
text-align:center;
}
.owl-carousel .item {
float: none;
display: inline-block;
}
}
You might adjust it to your HTML though, but the idea is that you text-align a parent, and float:none and display:inline-block the child that holds the content, on mobile:

Answer 4

The solution with display table is OK, but for me the divs on the right and left side slides out from the container. My code is close the same, I changed the table and table-cell to block and inline-block
.owl-stage{
display: block !important;
}
.owl-item{
display: inline-block;
float: none;
vertical-align: middle;
}
.item{
text-align: center;
}
The result (all images has different sizes):

Answer 5

Another solution is to use flexbox with margin.
.owl-stage-outer {
display: flex;
flex-wrap: nowrap;
flex-direction: column;
}
.owl-stage-outer > .owl-stage {
margin:0 auto;
}

Answer 6

I advise this solution:
.owl-carousel .owl-stage {
margin: 0 auto;
}