在我的应用程序中，我想要可视化我的kMeans的集群，所以我想我可以使用全窗口轮播，每张幻灯片将包含10（0）个集群的图像。因此，当用户点击下一个按钮时，他应该查看第二个集群等。我将调整图像的大小，使其大小相同，但问题是前一个和下一个按钮的平均高度是幻灯片，使用户不得不向下滚动以点击它们，这可能不是他想要的。
那么如何将prev / next按钮放在顶部？
我试过了：
<a class="left carousel-control" href="#mycarousel" role="button" data-slide="prev" style="top: 0"> <span class="glyphicon glyphicon-chevron-left" aria-hidden="true"></span> <span class="sr-only">Previous</span> </a>
但什么都没发生！就像Magikarp使用Splash ......
我正在使用Bootstrap轮播的基本示例。有什么想法吗？
工作（大：/）示例：
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<!-- The above 3 meta tags *must* come first in the head; any other head content must come *after* these tags -->
<title>kMeansVision</title>
<!-- Bootstrap -->
<link href="css/bootstrap.min.css" rel="stylesheet">
<!-- HTML5 shim and Respond.js for IE8 support of HTML5 elements and media queries -->
<!-- WARNING: Respond.js doesn't work if you view the page via file:// -->
<!--[if lt IE 9]>
<script src="https://oss.maxcdn.com/html5shiv/3.7.3/html5shiv.min.js"></script>
<script src="https://oss.maxcdn.com/respond/1.4.2/respond.min.js"></script>
<![endif]-->
<!-- My includes -->
<link href="css/full-window-carousel.css" rel="stylesheet">
</head>
<body>
<h1>Hello, world!</h1>
<div id="mycarousel" class="carousel slide" data-ride="carousel">
<!-- 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>
<li data-target="#mycarousel" data-slide-to="3"></li>
<li data-target="#mycarousel" data-slide-to="4"></li>
</ol>
<!-- Wrapper for slides -->
<div class="carousel-inner" role="listbox">
<div class="item active">
<img src="img/black.jpg" data-color="lightblue" alt="First Image">
<img src="img/yellow.png" data-color="lightblue" alt="First Image">
<img src="img/black.jpg" data-color="lightblue" alt="First Image">
<img src="img/yellow.png" data-color="lightblue" alt="First Image">
<div class="carousel-caption">
<h3>First Image</h3>
</div>
</div>
<div class="item">
<img src="https://unsplash.it/2000/1250?image=689" data-color="firebrick" alt="Second Image">
<div class="carousel-caption">
<h3>Second Image</h3>
</div>
</div>
<div class="item">
<img src="https://unsplash.it/2000/1250?image=675" data-color="violet" alt="Third Image">
<div class="carousel-caption">
<h3>Third Image</h3>
</div>
</div>
<div class="item">
<img src="https://unsplash.it/2000/1250?image=658" data-color="lightgreen" alt="Fourth Image">
<div class="carousel-caption">
<h3>Fourth Image</h3>
</div>
</div>
<div class="item">
<img src="https://unsplash.it/2000/1250?image=638" data-color="tomato" alt="Fifth Image">
<div class="carousel-caption">
<h3>Fifth Image</h3>
</div>
</div>
</div>
<!-- Controls -->
<a class="left carousel-control" href="#mycarousel" role="button" data-slide="prev" style="top: 0"> <span class="glyphicon glyphicon-chevron-left" aria-hidden="true"></span> <span class="sr-only">Previous</span> </a>
<a class="right carousel-control" href="#mycarousel" role="button" data-slide="next"> <span class="glyphicon glyphicon-chevron-right" aria-hidden="true"></span> <span class="sr-only">Next</span> </a>
</div>
<!-- jQuery (necessary for Bootstrap's JavaScript plugins) -->
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>
<!-- Include all compiled plugins (below), or include individual files as needed -->
<script src="js/bootstrap.min.js"></script>
<script>
$('.carousel').carousel({
interval: false
});
</script>
</body>
</html>
其中full-window-carousel.css是：
h3 {
display: inline-block;
padding: 10px;
background: #B9121B;
border-top-left-radius: 10px;
border-top-right-radius: 10px;
}
.p {
text-align: center;
padding-top: 40px;
font-size: 13px;
}
答案 0 :(得分：2)
这是一个带有旋转木马顶部箭头的自举旋转木马的例子。
.carousel-control .icon-prev, .carousel-control .icon-next, .carousel-control .glyphicon-chevron-left, .carousel-control .glyphicon-chevron-right {
top: 0 !important;
}<!DOCTYPE html>
<html lang="">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Title Page</title>
<!-- Bootstrap CSS -->
<link href="//netdna.bootstrapcdn.com/bootstrap/3.2.0/css/bootstrap.min.css" rel="stylesheet">
</head>
<body>
<div id="carousel-id" class="carousel slide" data-ride="carousel">
<ol class="carousel-indicators">
<li data-target="#carousel-id" data-slide-to="0" class=""></li>
<li data-target="#carousel-id" data-slide-to="1" class=""></li>
<li data-target="#carousel-id" data-slide-to="2" class="active"></li>
</ol>
<div class="carousel-inner">
<div class="item">
<img data-src="holder.js/900x500/auto/#777:#7a7a7a/text:First slide" alt="First slide" src="data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSI5MDAiIGhlaWdodD0iNTAwIj48cmVjdCB3aWR0aD0iOTAwIiBoZWlnaHQ9IjUwMCIgZmlsbD0iIzc3NyI+PC9yZWN0Pjx0ZXh0IHRleHQtYW5jaG9yPSJtaWRkbGUiIHg9IjQ1MCIgeT0iMjUwIiBzdHlsZT0iZmlsbDojN2E3YTdhO2ZvbnQtd2VpZ2h0OmJvbGQ7Zm9udC1zaXplOjU2cHg7Zm9udC1mYW1pbHk6QXJpYWwsSGVsdmV0aWNhLHNhbnMtc2VyaWY7ZG9taW5hbnQtYmFzZWxpbmU6Y2VudHJhbCI+Rmlyc3Qgc2xpZGU8L3RleHQ+PC9zdmc+">
<div class="container">
<div class="carousel-caption">
<h1>Example headline.</h1>
<p>Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.</p>
<p><a class="btn btn-lg btn-primary" href="#" role="button">Sign up today</a>
</p>
</div>
</div>
</div>
<div class="item">
<img data-src="holder.js/900x500/auto/#666:#6a6a6a/text:Second slide" alt="Second slide" src="data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSI5MDAiIGhlaWdodD0iNTAwIj48cmVjdCB3aWR0aD0iOTAwIiBoZWlnaHQ9IjUwMCIgZmlsbD0iIzY2NiI+PC9yZWN0Pjx0ZXh0IHRleHQtYW5jaG9yPSJtaWRkbGUiIHg9IjQ1MCIgeT0iMjUwIiBzdHlsZT0iZmlsbDojNmE2YTZhO2ZvbnQtd2VpZ2h0OmJvbGQ7Zm9udC1zaXplOjU2cHg7Zm9udC1mYW1pbHk6QXJpYWwsSGVsdmV0aWNhLHNhbnMtc2VyaWY7ZG9taW5hbnQtYmFzZWxpbmU6Y2VudHJhbCI+U2Vjb25kIHNsaWRlPC90ZXh0Pjwvc3ZnPg==">
<div class="container">
<div class="carousel-caption">
<h1>Another example .</h1>
<p>Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco larunt mollit anim id est laborum.</p>
<p><a class="btn btn-lg btn-primary" href="#" role="button">Learn more</a>
</p>
</div>
</div>
</div>
<div class="item active">
<img data-src="holder.js/900x500/auto/#555:#5a5a5a/text:Third slide" alt="Third slide" src="data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSI5MDAiIGhlaWdodD0iNTAwIj48cmVjdCB3aWR0aD0iOTAwIiBoZWlnaHQ9IjUwMCIgZmlsbD0iIzU1NSI+PC9yZWN0Pjx0ZXh0IHRleHQtYW5jaG9yPSJtaWRkbGUiIHg9IjQ1MCIgeT0iMjUwIiBzdHlsZT0iZmlsbDojNWE1YTVhO2ZvbnQtd2VpZ2h0OmJvbGQ7Zm9udC1zaXplOjU2cHg7Zm9udC1mYW1pbHk6QXJpYWwsSGVsdmV0aWNhLHNhbnMtc2VyaWY7ZG9taW5hbnQtYmFzZWxpbmU6Y2VudHJhbCI+VGhpcmQgc2xpZGU8L3RleHQ+PC9zdmc+">
<div class="container">
<div class="carousel-caption">
<h1>One more.</h1>
<p>aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.</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="#carousel-id" data-slide="prev"><span class="glyphicon glyphicon-chevron-left"></span></a>
<a class="right carousel-control" href="#carousel-id" data-slide="next"><span class="glyphicon glyphicon-chevron-right"></span></a>
</div>
<!-- jQuery -->
<script src="//code.jquery.com/jquery.js"></script>
<!-- Bootstrap JavaScript -->
<script src="//netdna.bootstrapcdn.com/bootstrap/3.2.0/js/bootstrap.min.js"></script>
</body>
</html>