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