我真的不知道如何处理这个问题所以请求帮助我！
我在这个项目中有一个整页滑块（在主页上）。在滑块内我有5个不同图片的项目。
我想更改第一张幻灯片/轮播项目上导航栏文字的颜色，其余部分看起来相同。首先应该是灰色的，在最后4个幻灯片中，导航栏的文本应该是白色的。
我还想更改导航栏中的徽标（在第一张幻灯片上它应该是灰色的，在最后4张幻灯片上它也应该是白色的。我有2个png来完成这项工作。）
以下是2张图片，用于展示我想要做的事情： slider1 slider2 (rest of sliders)
HTML：
<nav id="mainNav" class="navbar navbar-default navbar-custom navbar-fixed-top">
<div class="navbarmargin container-fluid">
<div class="navbar-header page-scroll">
<button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
<span class="sr-only">Toggle navigation</span><img src="muszerfal_elements/img/menu2.png" style="max-width: 38px; padding-right: 4px; margin-top: 6px;"/>
</button>
<a class="navbar-brand page-scroll" href="index.html">
<img class="logo" src="img/final_2.png">
</a>
</div>
<div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1" >
<ul class="navbartext nav navbar-nav navbar-right">
<li>
<a href="works.html">Works</a>
</li>
<li>
<a href="personal.html">Personal</a>
</li>
<li>
<a href="about.html">About</a>
</li>
<li>
<a href="contact.html">Contact</a>
</li>
</ul>
</div>
</div>
</nav>
<!-- Full Page Image Background Carousel Header -->
<header id="carousel" class="carousel slide" data-ride="carousel">
<!-- Indicators -->
<ol class="carousel-indicators">
<li data-target="#carousel" data-slide-to="0" class="active"></li>
<li data-target="#carousel" data-slide-to="1"></li>
<li data-target="#carousel" data-slide-to="2"></li>
<li data-target="#carousel" data-slide-to="3"></li>
</ol>
<!-- Wrapper for Slides -->
<div class="carousel-inner">
<div class="item active">
<!-- Set the first background image using inline CSS below. -->
<div class="fill" style="background-image:url('img/slider_1.jpg');" alt="Slide 1"></div>
<div class="carousel-caption caption1">
<h2>Fashion</h2>
</div>
</div>
<div class="item">
<!-- Set the second background image using inline CSS below. -->
<div class="fill" style="background-image:url('img/slider_3.jpg');" alt="Slide 2"></div>
<div class="carousel-caption caption2">
<h2>Fashion</h2>
</div>
</div>
<div class="item">
<!-- Set the third background image using inline CSS below. -->
<div class="fill" style="background-image:url('img/slider_4.jpg');" alt="Slide 3"></div>
<div class="carousel-caption caption3">
<h2>Beauty</h2>
</div>
</div>
<div class="item">
<!-- Set the third background image using inline CSS below. -->
<div class="fill" style="background-image:url('img/slider_5.jpg');" alt="Slide 3"></div>
<div class="carousel-caption caption4">
<h2>Fine Art</h2>
</div>
</div>
</div>
</header>
你能帮我解决一下这个问题吗？
提前谢谢！
答案 0 :(得分：1)
我认为你要做的是类似于fullPage.js，它允许整页滑块，我相信使用一些基本的CSS你可以实现所需的更改颜色功能。 http://alvarotrigo.com/fullPage/#firstPage
答案 1 :(得分：0)
.carousel-inner＆gt; .item：first-child h2 {color：black;}
答案 2 :(得分：0)
我假设这是你正在使用的滑块：https://github.com/BlackrockDigital/startbootstrap-full-slider
更改第一张幻灯片上文本的颜色不是问题（参见下面的示例）。但是，我不认为这个滑块有一个回调函数可以返回它所在的幻灯片。这将需要根据您所在的幻灯片更改导航栏的字体颜色。因此，我认为您必须寻找另一个允许您执行此操作的整页滑块。
/*
* Start Bootstrap - Full Slider (http://startbootstrap.com/)
* Copyright 2013-2016 Start Bootstrap
* Licensed under MIT (https://github.com/BlackrockDigital/startbootstrap/blob/gh-pages/LICENSE)
*/
html,
body {
height: 100%;
}
.carousel,
.item,
.active {
height: 100%;
}
.carousel-inner {
height: 100%;
}
/* Background images are set within the HTML using inline CSS, not here */
.fill {
width: 100%;
height: 100%;
background-position: center;
-webkit-background-size: cover;
-moz-background-size: cover;
background-size: cover;
-o-background-size: cover;
}
footer {
margin: 50px 0;
}<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<!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">
<meta name="description" content="">
<meta name="author" content="">
<!-- 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">
<!-- Optional theme -->
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap-theme.min.css" integrity="sha384-rHyoN1iRsVXV4nD0JutlnGaslCJuC7uwjduW9SVrLvRYooPp2bWYgmgJQIXwl/Sp" crossorigin="anonymous">
<title>Full Slider - Start Bootstrap Template</title>
<!-- HTML5 Shim and Respond.js 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/libs/html5shiv/3.7.0/html5shiv.js"></script>
<script src="https://oss.maxcdn.com/libs/respond.js/1.4.2/respond.min.js"></script>
<![endif]-->
</head>
<body>
<!-- Navigation -->
<nav id="mainNav" class="navbar navbar-default navbar-custom navbar-fixed-top">
<div class="navbarmargin container-fluid">
<div class="navbar-header page-scroll">
<button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
<span class="sr-only">Toggle navigation</span><img src="http://placehold.it/25x25" style="max-width: 38px; padding-right: 4px; margin-top: 6px;"/>
</button>
<a class="navbar-brand page-scroll" href="index.html">
<img class="logo" src="http://placehold.it/25x25">
</a>
</div>
<div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">
<ul class="navbartext nav navbar-nav navbar-right">
<li>
<a href="works.html">Works</a>
</li>
<li>
<a href="personal.html">Personal</a>
</li>
<li>
<a href="about.html">About</a>
</li>
<li>
<a href="contact.html">Contact</a>
</li>
</ul>
</div>
</div>
</nav>
<!-- Full Page Image Background Carousel Header -->
<header id="carousel" class="carousel slide" data-ride="carousel">
<!-- Indicators -->
<ol class="carousel-indicators">
<li data-target="#carousel" data-slide-to="0" class="active"></li>
<li data-target="#carousel" data-slide-to="1"></li>
<li data-target="#carousel" data-slide-to="2"></li>
<li data-target="#carousel" data-slide-to="3"></li>
</ol>
<!-- Wrapper for Slides -->
<div class="carousel-inner">
<div class="item active">
<!-- Set the first background image using inline CSS below. -->
<div class="fill" style="background-image:url('http://placehold.it/1900x1080/ffffff');" alt="Slide 1"></div>
<div class="carousel-caption caption1" style="color: grey;">
<h2>Fashion (this text is grey)</h2>
</div>
</div>
<div class="item">
<!-- Set the second background image using inline CSS below. -->
<div class="fill" style="background-image:url('http://placehold.it/1900x1080');" alt="Slide 2"></div>
<div class="carousel-caption caption2">
<h2>Fashion (this text is white)</h2>
</div>
</div>
<div class="item">
<!-- Set the third background image using inline CSS below. -->
<div class="fill" style="background-image:url('http://placehold.it/1900x1080');" alt="Slide 3"></div>
<div class="carousel-caption caption3">
<h2>Beauty</h2>
</div>
</div>
<div class="item">
<!-- Set the third background image using inline CSS below. -->
<div class="fill" style="background-image:url('http://placehold.it/1900x1080');" alt="Slide 3"></div>
<div class="carousel-caption caption4">
<h2>Fine Art</h2>
</div>
</div>
</div>
</header>
<!-- Latest compiled and minified JavaScript -->
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js" integrity="sha384-Tc5IQib027qvyjSMfHjOMaLkfuWVxZxUPnCJA7l2mCWNIpG9mGCD8wGNIcPD7Txa" crossorigin="anonymous"></script>
<!-- Script to Activate the Carousel -->
<script>
$('.carousel').carousel({
interval: 5000 //changes the speed
})
</script>
</body>
</html>