CSS 使 bootstrap carousel 响应高度
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Make bootstrap carousel responsive on height
提问by Depete
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.
我需要自定义 BS 轮播，以使图像大小正确响应。我需要轮播来适应活动幻灯片图像初始高度的高度。当视口比图像宽时，图像/幻灯片应按比例放大，但保持比例。当视口较小时，图像应缩小但保持比例。
I have tried many variations but cannot find the right solution.
我尝试了许多变体，但找不到正确的解决方案。
I hope some css/js expert can help me out here.
我希望一些 css/js 专家可以帮助我。
Here's my current markup:
这是我目前的标记：
<!-- 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.
这是我目前的 css，它的功能不像 desciped。这个版本给了我一个固定的 500px 高度，当视口小于图像宽度时，图像会失去纵横比。
/* 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.
任何帮助表示赞赏。
回答by negative0
In the CSS selector .carousel-inner > .item > img, replace min-widthwith width: 100%;
在 CSS 选择器中.carousel-inner > .item > img，替换min-width为width: 100%;
.carousel-inner > .item > img {
min-width: 100%;
width: 100%;
}
回答by Lmaquer
I fixed it adding a class to the images in the carousel, for example :
我修复了它为轮播中的图像添加一个类，例如：
<img class="fixed-height">
and in the css:
并在 css 中：
.fixed-height {
max-height: 400px;
}
回答by user3363454
I was having the same problem as above. Here's my solution. I changed a few lines of CSS:
我遇到了与上述相同的问题。这是我的解决方案。我更改了几行 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.
我希望这有帮助。
回答by Tapan kumar
I will refer you just to add the class "img-responsive" in the image tags. And Bootstrap will do the rest for you.
我会建议您在图像标签中添加“img-responsive”类。Bootstrap 将为您完成剩下的工作。
This class tells the Bootstrap that you want to scale the images according to the screen size.
此类告诉 Bootstrap 您要根据屏幕尺寸缩放图像。
<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
有关更多详细信息，我有一篇文章对此进行了重新分级，如果您愿意，可以查看
回答by ikbal
define for every devices such as
为每个设备定义，例如
@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;
}
}
回答by Arif Rahman
To use images on Bootstrap carousel of different sizes and to do the followings, all at the same time,
要在不同大小的 Bootstrap carousel 上使用图像并同时执行以下操作，
- Image's width on carousael = 100%
- Carousel image slide height = fixed
- Maintain the image ratio
- carousael 上的图像宽度 = 100%
- 轮播图片幻灯片高度 = 固定
- 保持图像比例
Remove the imgtag & add a new class instead, say slide1
删除img标签并添加一个新类，比如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 slide1class,
然后为slide1类添加以下 CSS 代码，
.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.
您还可以为不同的窗口大小配置此高度。
回答by Majali
I had the same problem adding the class "img-responsive" in the image tags made images responsive
我在图像标签中添加类“img-responsive”时遇到了同样的问题，使图像具有响应性
<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
但问题出在滑块高度上，所以我需要添加一个媒体查询来调整控件 div 的大小
@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
这个媒体查询只是一个例子，自定义它以满足您的需求，我希望会有所帮助
