正如标题所说，旋转木马中的箭头有问题。箭头向上并与导航栏合并，但我仍然可以单击以更改图像。我添加了背景图像作为封面，我稍微修改了代码，我无法找出问题所在。你能帮帮我吗？我怎样才能再次降低箭头，为什么会发生这种情况呢？
这是我的代码：
HTML
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Web Paintings</title>
<link href="style.css" rel="stylesheet">
<!-- Latest compiled and minified CSS -->
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u" crossorigin="anonymous">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap-theme.min.css" integrity="sha384-rHyoN1iRsVXV4nD0JutlnGaslCJuC7uwjduW9SVrLvRYooPp2bWYgmgJQIXwl/Sp" crossorigin="anonymous">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js">
</script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js" integrity="sha384-Tc5IQib027qvyjSMfHjOMaLkfuWVxZxUPnCJA7l2mCWNIpG9mGCD8wGNIcPD7Txa" crossorigin="anonymous"></script>
</head>
<body>
<!-- Navigation -->
<nav class="navbar navbar-inverse navbar-fixed-top margin-top" role="navigation">
<div class="container">
<!-- Brand and toggle get grouped for better mobile display -->
<div class="navbar-header">
<button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
<span class="sr-only">Toggle navigation</span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
<a class="navbar-brand" href="#">Web Paintings</a>
</div>
<!-- Collect the nav links, forms, and other content for toggling -->
<div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">
<ul class="nav navbar-nav navbar-right">
<li>
<a href="#"><span class="glyphicon glyphicon-home"></span>Home</a>
</li>
<li>
<a href="#"><span class="fa fa-database"></span>Paintings</a>
</li>
<li>
<a href="#"><span class="fa fa-book"></span>Contact</a>
</li>
<li class="slide"><a href="#" class="btn-slide1"><span class="fa fa-pencil"></span>Register</a></li>
<li class="slide"><a href="#" class="btn-slide2"><span class="glyphicon glyphicon-log-in"></span> Login</a></li>
</ul>
</div>
</div>
</nav>
<div class="margin-top">
<!-- START OF CAROUSEL -->
<div id="myCarousel" class="carousel slide">
<!-- Carousel items -->
<div class="carousel-inner">
<div class="item active ad1">
<div class="carousel-caption">
<h4 class="mycaption">First Thumbnail label</h4>
<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>
</div>
</div>
<div class="item ad2">
<div class="carousel-caption">
<h4 class="mycaption">Second Thumbnail label</h4>
<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>
</div>
</div>
<div class="item ad3">
<div class="carousel-caption">
<h4 class="mycaption">Third Thumbnail label</h4>
<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>
</div>
</div>
</div>
<!-- Carousel nav -->
<a class="carousel-control left" href="#myCarousel" data-slide="prev">‹</a>
<a class="carousel-control right" href="#myCarousel" data-slide="next">›</a>
</div>
<!-- END OF CAROUSEL -->
</div>
</div>
</div>
</body>
</html>
CSS：
body {
font-family: 'Raleway', sans-serif;
}
.marginTop{
margin-top:60px;
}
.navbar {
min-height: 32px !important;
}
.navbar .navbar-brand{
padding: 0 12px;
font-size: 16px;
line-height: 38px;
height: 38px;
}
.navbar .navbar-nav > li > a {
padding-top: 0px;
padding-bottom: 0px;
line-height: 38px;
}
.navbar .navbar-toggle {
margin-top: 3px;
margin-bottom: 0px;
padding: 8px 9px;
}
.navbar .navbar-collapse {
border-color: #2f2f2f;
}
ul.nav a:hover {
color: #129CF3 !important;
}
#myCarousel {
width: 100%;
}
.carousel-control {
margin-top: 20px;
}
.carousel-inner .item {
width: 100%;
height: 400px;
-webkit-background-size: cover;
-moz-background-size: cover;
-o-background-size: cover;
background-size: cover;
}
.ad1 {
background: url(images/paint1.jpg) no-repeat center center fixed;
}
.ad2 {
background: url(images/paint2.jpg) no-repeat center center fixed;
}
.ad3 {
background: url(images/paint3.jpg) no-repeat center center fixed;
}
.mycaption {
color: white;
font: bold 24px/45px Helvetica, Sans-Serif; letter-spacing: -1px;
background-color: rgba(0, 0, 0, 0.7);
padding: 10px;
}
答案 0 :(得分：0)
在line-height上添加.carousel-control取决于您的.carousel-inner .item > height
.carousel-control {
line-height:400px;
font-size:100px !important;
width:80px !important;
}
body {
font-family: 'Raleway', sans-serif;
}
.marginTop{
margin-top:60px;
}
.navbar {
min-height: 32px !important;
}
.navbar .navbar-brand{
padding: 0 12px;
font-size: 16px;
line-height: 38px;
height: 38px;
}
.navbar .navbar-nav > li > a {
padding-top: 0px;
padding-bottom: 0px;
line-height: 38px;
}
.navbar .navbar-toggle {
margin-top: 3px;
margin-bottom: 0px;
padding: 8px 9px;
}
.navbar .navbar-collapse {
border-color: #2f2f2f;
}
ul.nav a:hover {
color: #129CF3 !important;
}
#myCarousel {
width: 100%;
}
.carousel-control {
margin-top: 20px;
}
.carousel-inner .item {
width: 100%;
height: 400px;
-webkit-background-size: cover;
-moz-background-size: cover;
-o-background-size: cover;
background-size: cover;
}
.carousel-control {
line-height:400px;
font-size:100px !important;
width:80px !important;
}
.ad1 {
background: url(images/paint1.jpg) no-repeat center center fixed;
}
.ad2 {
background: url(images/paint2.jpg) no-repeat center center fixed;
}
.ad3 {
background: url(images/paint3.jpg) no-repeat center center fixed;
}
.mycaption {
color: white;
font: bold 24px/45px Helvetica, Sans-Serif; letter-spacing: -1px;
background-color: rgba(0, 0, 0, 0.7);
padding: 10px;
}<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Web Paintings</title>
<link href="style.css" rel="stylesheet">
<!-- Latest compiled and minified CSS -->
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u" crossorigin="anonymous">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap-theme.min.css" integrity="sha384-rHyoN1iRsVXV4nD0JutlnGaslCJuC7uwjduW9SVrLvRYooPp2bWYgmgJQIXwl/Sp" crossorigin="anonymous">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js">
</script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js" integrity="sha384-Tc5IQib027qvyjSMfHjOMaLkfuWVxZxUPnCJA7l2mCWNIpG9mGCD8wGNIcPD7Txa" crossorigin="anonymous"></script>
</head>
<body>
<!-- Navigation -->
<nav class="navbar navbar-inverse navbar-fixed-top margin-top" role="navigation">
<div class="container">
<!-- Brand and toggle get grouped for better mobile display -->
<div class="navbar-header">
<button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
<span class="sr-only">Toggle navigation</span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
<a class="navbar-brand" href="#">Web Paintings</a>
</div>
<!-- Collect the nav links, forms, and other content for toggling -->
<div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">
<ul class="nav navbar-nav navbar-right">
<li>
<a href="#"><span class="glyphicon glyphicon-home"></span>Home</a>
</li>
<li>
<a href="#"><span class="fa fa-database"></span>Paintings</a>
</li>
<li>
<a href="#"><span class="fa fa-book"></span>Contact</a>
</li>
<li class="slide"><a href="#" class="btn-slide1"><span class="fa fa-pencil"></span>Register</a></li>
<li class="slide"><a href="#" class="btn-slide2"><span class="glyphicon glyphicon-log-in"></span> Login</a></li>
</ul>
</div>
</div>
</nav>
<div class="margin-top">
<!-- START OF CAROUSEL -->
<div id="myCarousel" class="carousel slide">
<!-- Carousel items -->
<div class="carousel-inner">
<div class="item active ad1">
<div class="carousel-caption">
<h4 class="mycaption">First Thumbnail label</h4>
<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>
</div>
</div>
<div class="item ad2">
<div class="carousel-caption">
<h4 class="mycaption">Second Thumbnail label</h4>
<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>
</div>
</div>
<div class="item ad3">
<div class="carousel-caption">
<h4 class="mycaption">Third Thumbnail label</h4>
<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>
</div>
</div>
</div>
<!-- Carousel nav -->
<a class="carousel-control left" href="#myCarousel" data-slide="prev">‹</a>
<a class="carousel-control right" href="#myCarousel" data-slide="next">›</a>
</div>
<!-- END OF CAROUSEL -->
</div>
</div>
</div>
</body>
</html>