I want to change background color of the selected tab label in this script:
When users click on one of the tab labels, the background color of the selected tab label should change to white to match the content’s background, and the label text should be white. I thought the last selector should do the job but it does not.
This doesn’t work because the labels are not siblings of the inputs. That is, they don’t have the same parent. So you need to try another approach here. I guess you could put the labels in the same container as each radio input and just pull them out visually, but it’s messy.
As Ralph said you will need to move the inputs to the top above everything else. Here is your code re-organised in working order.
<!DOCTYPE HTML>
<html>
<head>
<meta charset="utf-8">
<title>Untitled Document</title>
<style>
.tabs {
width: 650px;
float: none;
list-style: none;
padding: 0;
margin: 75px auto;
}
.tabs li {display: block;}
.labels:after {
content: '';
display: table;
clear: both;
}
.tabs label {
display: inline-block;
float: left;
padding: 10px 20px;
color: #FFFFFF;
font-size: 24px;
font-weight: normal;
background: #2c3e50;
cursor: pointer;
}
.tabs label:hover {
background: #3498db;
}
.tab-content {
display: none;
width: 100%;
padding: 15px;
border:1px solid #ccc;
background-color:#ffffff;
}
#tab1, #tab2, #tab3 {display:none;}
#tab1:checked ~ .tabs #tab-content1,
#tab2:checked ~ .tabs #tab-content2,
#tab3:checked ~ .tabs #tab-content3 {display:block}
#tab1:checked ~ .tabs #label1,
#tab2:checked ~ .tabs #label2,
#tab3:checked ~ .tabs #label3 {background:#3498db;color: #fff;}
</style>
</head>
<body>
<input type="radio" checked name="tabs" id="tab1">
<input type="radio" name="tabs" id="tab2">
<input type="radio" name="tabs" id="tab3">
<ul class="tabs">
<li class="labels">
<label for="tab1" id="label1">tab 1</label>
<label for="tab2" id="label2">tab 2</label>
<label for="tab3" id="label3">tab 3</label>
</li>
<li>
<div id="tab-content1" class="tab-content">
<h3>Tab 1</h3>
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</div>
</li>
<li>
<div id="tab-content2" class="tab-content">
<h3>Tab 2</h3>
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</div>
</li>
<li>
<div id="tab-content3" class="tab-content">
<h3>Tab 3</h3>
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</div>
</li>
</ul>
</body>
</html>