Make bootstrap carousel responsive on height - css

Question

I need to customize BS carousel, to make images size responsive corectly.
I need the carousel to adapt to the height of the active slides images initiel height.
When the viewport is wider than the image, the image/slide should scale up, but keep ratio.
When viewport is smaller the image should scale down but keep ratio.
I have tried many variations but cannot find the right solution.
I hope some css/js expert can help me out here.
Here's my current markup:
<!-- Carousel
================================================== -->
<div id="myCarousel" class="carousel slide" data-ride="carousel" data-pause="true">
<!-- Indicators -->
<ol class="carousel-indicators">
<li data-target="#myCarousel" data-slide-to="0" class="active"></li>
<li data-target="#myCarousel" data-slide-to="1"></li>
<li data-target="#myCarousel" data-slide-to="2"></li>
</ol>
<div class="carousel-inner">
<div class="item active"><!--data-src="holder.js/900x500/auto/#777:#7a7a7a/text:First slide"-->
<img src="MediaContent/Images/Unika%20kobbertryk%201.jpg" alt="First slide">
<div class="container">
<div class="carousel-caption">
<h1>Example headline.</h1>
<p>Note: If you're viewing this page via a <code>file://</code> URL, the "next" and "previous" Glyphicon buttons on the left and right might not load/display properly due to web browser security rules.</p>
<p><a class="btn btn-lg btn-primary" href="#" role="button">Sign up today</a></p>
</div>
</div>
</div>
<div class="item"> <!--data-src="holder.js/900x500/auto/#666:#6a6a6a/text:Second slide" -->
<img src="MediaContent/Images/Unika%20kobbertryk%202.jpg" alt="Second slide">
<div class="container">
<div class="carousel-caption">
<h1>Another example headline.</h1>
<p>Cras justo odio, dapibus ac facilisis in, egestas eget quam. Donec id elit non mi porta gravida at eget metus. Nullam id dolor id nibh ultricies vehicula ut id elit.</p>
<p><a class="btn btn-lg btn-primary" href="#" role="button">Learn more</a></p>
</div>
</div>
</div>
<div class="item"><!--data-src="holder.js/900x500/auto/#555:#5a5a5a/text:Third slide"-->
<img src="MediaContent/Images/Unika%20kobbertryk%203.jpg" alt="Third slide">
<div class="container">
<div class="carousel-caption">
<h1>One more for good measure.</h1>
<p>Cras justo odio, dapibus ac facilisis in, egestas eget quam. Donec id elit non mi porta gravida at eget metus. Nullam id dolor id nibh ultricies vehicula ut id elit.</p>
<p><a class="btn btn-lg btn-primary" href="#" role="button">Browse gallery</a></p>
</div>
</div>
</div>
</div>
<a class="left carousel-control" href="#myCarousel" data-slide="prev"><span class="glyphicon glyphicon-chevron-left"></span></a>
<a class="right carousel-control" href="#myCarousel" data-slide="next"><span class="glyphicon glyphicon-chevron-right"></span></a>
</div><!-- /.carousel -->
And heres my currently css, that does not function like desciped. This version gives me a fixed 500px height, and an image that looses aspect ratio when viewport is smaller than image width.
/* GLOBAL STYLES
body {
padding-bottom: 40px;
color: #5a5a5a;
}
/* CUSTOMIZE THE NAVBAR
-------------------------------------------------- */
/* Special class on .container surrounding .navbar, used for positioning it into place. */
.navbar-wrapper {
position: absolute;
top: 0;
left: 0;
right: 0;
z-index: 20;
}
/* Flip around the padding for proper display in narrow viewports */
.navbar-wrapper .container {
padding-left: 0;
padding-right: 0;
}
.navbar-wrapper .navbar {
padding-left: 15px;
padding-right: 15px;
}
/* CUSTOMIZE THE CAROUSEL
-------------------------------------------------- */
/* Carousel base class */
.carousel {
min-height: 500px;
margin-bottom: 60px;
}
/* Since positioning the image, we need to help out the caption */
.carousel-caption {
z-index: 10;
}
/* Declare heights because of positioning of img element */
.carousel .item {
min-height: 500px;
background-color: #777;
}
.carousel-inner > .item > img {
position: absolute;
top: 0;
left: 0;
min-width: 100%;
min-height: 500px;
}
/* MARKETING CONTENT
-------------------------------------------------- */
/* Pad the edges of the mobile views a bit */
.marketing {
padding-left: 15px;
padding-right: 15px;
}
/* Center align the text within the three columns below the carousel */
.marketing .col-lg-4 {
text-align: center;
margin-bottom: 20px;
}
.marketing h2 {
font-weight: normal;
}
.marketing .col-lg-4 p {
margin-left: 10px;
margin-right: 10px;
}
/* Featurettes
------------------------- */
.featurette-divider {
margin: 80px 0; /* Space out the Bootstrap <hr> more */
}
/* Thin out the marketing headings */
.featurette-heading {
font-weight: 300;
line-height: 1;
letter-spacing: -1px;
}
/* RESPONSIVE CSS
-------------------------------------------------- */
#media (min-width: 768px) {
/* Remove the edge padding needed for mobile */
.marketing {
padding-left: 0;
padding-right: 0;
}
/* Navbar positioning foo */
.navbar-wrapper {
margin-top: 20px;
}
.navbar-wrapper .container {
padding-left: 15px;
padding-right: 15px;
}
.navbar-wrapper .navbar {
padding-left: 0;
padding-right: 0;
}
/* The navbar becomes detached from the top, so we round the corners */
.navbar-wrapper .navbar {
border-radius: 4px;
}
/* Bump up size of carousel content */
.carousel-caption p {
margin-bottom: 20px;
font-size: 21px;
line-height: 1.4;
}
.featurette-heading {
font-size: 50px;
}
}
#media (min-width: 992px) {
.featurette-heading {
margin-top: 120px;
}
}
Any help appreciated.

Answer 1

In the CSS selector .carousel-inner > .item > img, replace min-width with width: 100%;
.carousel-inner > .item > img {
min-width: 100%;
width: 100%;
}

Answer 2

I fixed it adding a class to the images in the carousel, for example :
<img class="fixed-height">
and in the css:
.fixed-height {
max-height: 400px;
}

Answer 3

I will refer you just to add the class "img-responsive" in the image tags. And Bootstrap will do the rest for you.
This class tells the Bootstrap that you want to scale the images according to the screen size.
<div class="carousel slide" id="theCarousel" data-interval="3000">
<ol class="carousel-indicators">
<li data-target="#theCarousel" data-slide-to="0" class="active"></li>
<li data-target="#theCarousel" data-slide-to="1"></li>
<li data-target="#theCarousel" data-slide-to="2"></li>
</ol>
<div class="carousel-inner">
<div class="item active">
<img src="http://www.ansupalake.in/gallery/tapan%20kumar%201.JPG" alt="1" class="img-responsive" />
<div class="carousel-caption">
<h4 class="text-left">Resting In Style</h4>
<p class="text-left">Hi Everybody what's going on.....</p>
</div>
</div>
<div class="item ">
<img src="http://www.ansupalake.in/gallery/tapan%20kumar%202.JPG" alt="2" class="img-responsive" />
<div class="carousel-caption">
<h4 class="text-left">The Dude Look</h4>
<p class="text-left">Hi Everybody what's going on.....</p>
</div>
</div>
<div class="item ">
<img src="http://www.ansupalake.in/gallery/tapan%20kumar.JPG" alt="3" class="img-responsive" />
<div class="carousel-caption">
<h4 class="text-left">How z It??</h4>
<p class="text-left">Hi Everybody what's going on.....</p>
</div>
</div>
</div>
</div>
For more details Here I have an article regrading this, You can take a look if you want
Carousel Image Slider In Bootstrap 3

Answer 4

I was having the same problem as above. Here's my solution. I changed a few lines of CSS:
.carousel {
margin-bottom: 60px;
}
/* Since positioning the image, we need to help out the caption */
.carousel-caption {
z-index: 10;
}
/* Declare heights because of positioning of img element */
.carousel .item {
min-width: 100%;
background-color: #fff;
}
.carousel-inner > .item > img {
min-width: 100%;
height: 100%;
}
I hope this helps.

Answer 5

define for every devices such as
#media (min-width: 360px) {
.carousel {
min-height: 140px;
margin-bottom: 60px;
}
/* Since positioning the image, we need to help out the caption */
.carousel-caption {
z-index: 10;
}
/* Declare heights because of positioning of img element */
.carousel .item {
min-height: 140px;
background-color: #777;
}
.carousel-inner > .item > img {
position: absolute;
top: 0;
left: 0;
min-width: 100%;
min-height: 140px;
}
}

Answer 6

To use images on Bootstrap carousel of different sizes and to do the followings, all at the same time,
Image's width on carousael = 100%
Carousel image slide height = fixed
Maintain the image ratio
Remove the img tag & add a new class instead, say slide1
<div class="item slide1">
<div class="container">
<div class="carousel-caption">
<h1>Slide1 headline.</h1>
<p>Slide content.</p>
</div>
</div>
</div>
then add the following CSS code for slide1 class,
.slide1{
height: 500px; /* your desired height for this slide */
background: url(/img/your-img.jpg) no-repeat center center;
background-size: cover;
}
You may also configure this heights for different window sizes.

Answer 7

I had the same problem adding the class "img-responsive" in the image tags made images responsive
<div class="carousel-inner">
<div class="item active">
<img src="/imahes/my-image.jpg" alt="1" class="img-responsive" />
<div class="carousel-caption">
<h4 class="text-left">My caption</h4>
</div>
</div>
but the problem was with the slider height so I need to add a media query to resize the control div
#media (max-width: 800px) {
.carousel-control{
height:350px;
}
}
this media query is just an example, customize it to suit your needs, I hope that will help