内容div之间的制表符，第一个div不会在加载时激活
内容div之间的制表符，第一个div不会在加载时激活
提问于 2019-12-05 00:02:43
我有两个div，我需要使用两个导航选项卡进行导航:第一年和第二年。当我单击第一年时，导航效果很好，出现"first“div，"second”也是如此。我的问题是，当页面第一次加载时，两个div都不是活动的。当页面第一次加载时，如何让" first“div始终显示？我看了很多帖子，但还是不能解决这个问题。
也就是说，当页面第一次加载时，两个选项卡都不会显示，直到我单击它们
在页面加载时，它应该如下所示：
当前代码：
section {
padding: 150px 0;
}
header {
padding: 156px 0 100px;
}
.it-icons a {
display: inline-block;
height: 3.5rem;
width: 3.5rem;
background-color: #4582EC;
color: #fff !important;
border-radius: 100%;
text-align: center;
font-size: 1.5rem;
line-height: 3.5rem;
margin-right: 1rem;
}
.it-icons a:hover {
transform: scale(1.3) rotate(20deg);
background-color: skyblue;
}
.tu-icon a:hover {
transform: rotate(5deg);
}
.os-icons a {
display: inline-block;
height: 3.5rem;
width: 3.5rem;
background-color: #4582EC;
color: #fff !important;
border-radius: 100%;
text-align: center;
font-size: 1.5rem;
line-height: 3.5rem;
margin-right: 1rem;
}
.os-icons a:hover {
transform: scale(1.3) rotate(20deg);
background-color: skyblue;
}
.tabs .nav-tabs > li, .tabs .nav-pills > li {
float: none;
display: inline-block;
margin-bottom: 10px;
padding: 5px 5px;
}
.tabs .nav-tabs {
text-align: center;
border-bottom: 0;
margin-bottom: 20px;
}
.tabs .nav-tabs li:not(:last-child) {
margin-right: 10px;
}
.tabs .nav-tabs li a {
text-transform: capitalize;
font-size: 20px;
padding: 10px 25px;
border: 2px solid #4582EC;
border-radius: 0;
transition: all .3s ease;
font-weight: 600;
color: #4582EC;
font-family: "Source Sans Pro", sans-serif;
}
.tabs .nav-tabs li a:hover {
background: #4582EC;
color: #fff;
border: 2px solid #4582EC;
}
.tabs .nav-tabs li.active a {
color: #fff;
background: #4582EC;
border: 2px solid #4582EC;
}
.service-box {
position: relative;
width: 100%;
}
.service-box .contents {
margin-left: 30px;
}
.tab-content {
position: relative;
float: left;
width: 100%;
z-index: 99;
}
.service-box {
position: relative;
width: 100%;
}
.service-box .section-title h3 {
position: relative;
font-size: 32px;
line-height: 42px;
font-weight: 700;
padding-bottom: 20px;
margin-bottom: 45px;
color: #000;
text-transform: uppercase;
}
.service-box .section-title h3:before {
position: absolute;
left: 0px;
content: '';
bottom: 0px;
background: #333333;
height: 1px;
width: 55px;
}<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<link href="https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-Vkoo8x4CGsO3+Hhxv8T/Q5PaXtkKtu6ug5TOeNV6gBiFeWPGFN9MuhOf23Q9Ifjh" crossorigin="anonymous">
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/js/bootstrap.min.js" integrity="sha384-wfSDF2E50Y2D1uUdj0O3uMBJnjuUD4Ih7YwaYd1iqfktj0Uod8GCExl3Og8ifwB6" crossorigin="anonymous"></script>
<section id="education" style="background-color:whitesmoke;">
<div class="container">
<div class="row d-flex no-gutters">
<div class="col-lg-12 mx-auto">
<h2 style="text-align: center;"> Education </h2>
<div class="row">
<br>
<br>
<div class="col-md-8">
<!--tabs-->
<div class="tabs">
<ul class="nav nav-tabs" role="tablist">
<li role="presentation" class="active">
<a href="#first" data-toggle="tab"> First Year </a>
</li>
<li role="presentation">
<a href="#second" data-toggle="tab"> Second Year </a>
</li>
</ul>
</div>
<!--Start single tab content-->
<div class="tab-content">
<div class="service-box tab-pane fade in active row" id="first">
<div class="contents">
<div class="section-title">
<br>
<h3> First Year</h3>
<br>
</div>
<div class="col-md-8 animate-box">
<div class="progress-wrap">
<h3>Photoshop</h3>
<div class="progress" style="width: 100%;">
<div class="progress-bar color-1" role="progressbar" aria-valuenow="90"
aria-valuemin="0" aria-valuemax="100" style="width:90%">
<span>90%</span>
</div>
</div>
</div>
<br>
<div class="progress-wrap ftco-animate">
<h3>jQuery</h3>
<div class="progress">
<div class="progress-bar color-2" role="progressbar" aria-valuenow="85" aria-valuemin="0"
aria-valuemax="100" style="width:85%">
<span>85%</span>
</div>
</div>
</div>
<br>
</div>
</div>
</div>
<!--End single tab content-->
<!--Start single tab content-->
<div class="service-box tab-pane fade in" id="second">
<div class="contents">
<div class="section-title">
<br>
<h3> Second Year</h3>
<br>
</div>
<div class="col-md-8 animate-box">
<div class="progress-wrap">
<h3>Java</h3>
<div class="progress" style="width: 100%;">
<div class="progress-bar color-1" role="progressbar" aria-valuenow="90"
aria-valuemin="0" aria-valuemax="100" style="width:90%">
<span>90%</span>
</div>
</div>
</div>
<br>
<div class="progress-wrap ftco-animate">
<h3>C#</h3>
<div class="progress">
<div class="progress-bar color-2" role="progressbar" aria-valuenow="85" aria-valuemin="0"
aria-valuemax="100" style="width:85%">
<span>85%</span>
</div>
</div>
</div>
<br>
</div>
</div>
</div>
<!--End single tab content-->
</div>
</div>
</div>
</div>
</div>
</div>
</section>
Stack Overflow用户
发布于 2019-12-05 00:26:03
您可以将show类添加到<div class="service-box tab-pane fade in active row show" id="first">元素中以在默认情况下显示。
直接将类添加到元素比使用代码更好，因为如果在代码运行时元素不存在，它将不会做任何事情。如果你把你的代码放在onLoad函数上，如果你的页面需要时间加载，你会注意到闪烁。
此外，必须更改活动选项卡，因为引导程序将active类放在a元素上，而您的active样式放在li标记上。您必须将活动样式放置在li标签上。我已经在下面的代码、HTML和CSS中做到了这一点。
活动类现在为：
.tabs .nav-tabs li a.active {
color: #fff;
background: #4582EC;
border: 2px solid #4582EC;
}默认情况下，活动类位于以下元素上：
<a href="#first" data-toggle="tab" class="active"> First Year </a>示例如下：
section {
padding: 150px 0;
}
header {
padding: 156px 0 100px;
}
.it-icons a {
display: inline-block;
height: 3.5rem;
width: 3.5rem;
background-color: #4582EC;
color: #fff !important;
border-radius: 100%;
text-align: center;
font-size: 1.5rem;
line-height: 3.5rem;
margin-right: 1rem;
}
.it-icons a:hover {
transform: scale(1.3) rotate(20deg);
background-color: skyblue;
}
.tu-icon a:hover {
transform: rotate(5deg);
}
.os-icons a {
display: inline-block;
height: 3.5rem;
width: 3.5rem;
background-color: #4582EC;
color: #fff !important;
border-radius: 100%;
text-align: center;
font-size: 1.5rem;
line-height: 3.5rem;
margin-right: 1rem;
}
.os-icons a:hover {
transform: scale(1.3) rotate(20deg);
background-color: skyblue;
}
.tabs .nav-tabs > li, .tabs .nav-pills > li {
float: none;
display: inline-block;
margin-bottom: 10px;
padding: 5px 5px;
}
.tabs .nav-tabs {
text-align: center;
border-bottom: 0;
margin-bottom: 20px;
}
.tabs .nav-tabs li:not(:last-child) {
margin-right: 10px;
}
.tabs .nav-tabs li a {
text-transform: capitalize;
font-size: 20px;
padding: 10px 25px;
border: 2px solid #4582EC;
border-radius: 0;
transition: all .3s ease;
font-weight: 600;
color: #4582EC;
font-family: "Source Sans Pro", sans-serif;
}
.tabs .nav-tabs li a:hover {
background: #4582EC;
color: #fff;
border: 2px solid #4582EC;
}
.tabs .nav-tabs li a.active {
color: #fff;
background: #4582EC;
border: 2px solid #4582EC;
}
.service-box {
position: relative;
width: 100%;
}
.service-box .contents {
margin-left: 30px;
}
.tab-content {
position: relative;
float: left;
width: 100%;
z-index: 99;
}
.service-box {
position: relative;
width: 100%;
}
.service-box .section-title h3 {
position: relative;
font-size: 32px;
line-height: 42px;
font-weight: 700;
padding-bottom: 20px;
margin-bottom: 45px;
color: #000;
text-transform: uppercase;
}
.service-box .section-title h3:before {
position: absolute;
left: 0px;
content: '';
bottom: 0px;
background: #333333;
height: 1px;
width: 55px;
}<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<link href="https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-Vkoo8x4CGsO3+Hhxv8T/Q5PaXtkKtu6ug5TOeNV6gBiFeWPGFN9MuhOf23Q9Ifjh" crossorigin="anonymous">
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/js/bootstrap.min.js" integrity="sha384-wfSDF2E50Y2D1uUdj0O3uMBJnjuUD4Ih7YwaYd1iqfktj0Uod8GCExl3Og8ifwB6" crossorigin="anonymous"></script>
<section id="education" style="background-color:whitesmoke;">
<div class="container">
<div class="row d-flex no-gutters">
<div class="col-lg-12 mx-auto">
<h2 style="text-align: center;"> Education </h2>
<div class="row">
<br>
<br>
<div class="col-md-8">
<!--tabs-->
<div class="tabs">
<ul class="nav nav-tabs" role="tablist">
<li role="presentation">
<a href="#first" data-toggle="tab" class="active"> First Year </a>
</li>
<li role="presentation">
<a href="#second" data-toggle="tab"> Second Year </a>
</li>
</ul>
</div>
<!--Start single tab content-->
<div class="tab-content">
<div class="service-box tab-pane fade in active row show" id="first">
<div class="contents">
<div class="section-title">
<br>
<h3> First Year</h3>
<br>
</div>
<div class="col-md-8 animate-box">
<div class="progress-wrap">
<h3>Photoshop</h3>
<div class="progress" style="width: 100%;">
<div class="progress-bar color-1" role="progressbar" aria-valuenow="90"
aria-valuemin="0" aria-valuemax="100" style="width:90%">
<span>90%</span>
</div>
</div>
</div>
<br>
<div class="progress-wrap ftco-animate">
<h3>jQuery</h3>
<div class="progress">
<div class="progress-bar color-2" role="progressbar" aria-valuenow="85" aria-valuemin="0"
aria-valuemax="100" style="width:85%">
<span>85%</span>
</div>
</div>
</div>
<br>
</div>
</div>
</div>
<!--End single tab content-->
<!--Start single tab content-->
<div class="service-box tab-pane fade in" id="second">
<div class="contents">
<div class="section-title">
<br>
<h3> Second Year</h3>
<br>
</div>
<div class="col-md-8 animate-box">
<div class="progress-wrap">
<h3>Java</h3>
<div class="progress" style="width: 100%;">
<div class="progress-bar color-1" role="progressbar" aria-valuenow="90"
aria-valuemin="0" aria-valuemax="100" style="width:90%">
<span>90%</span>
</div>
</div>
</div>
<br>
<div class="progress-wrap ftco-animate">
<h3>C#</h3>
<div class="progress">
<div class="progress-bar color-2" role="progressbar" aria-valuenow="85" aria-valuemin="0"
aria-valuemax="100" style="width:85%">
<span>85%</span>
</div>
</div>
</div>
<br>
</div>
</div>
</div>
<!--End single tab content-->
</div>
</div>
</div>
</div>
</div>
</div>
</section>
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/59180106
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