语法
:target {
css declarations;
}
:target 选择器的例子：
<!DOCTYPE html>
<html>
<head>
<title>文档的标题</title>
<style>
:target {
border: 2px solid #1c87c9;
background-color: #eeeeee;
}
</style>
</head>
<body>
<h2>:target selector example</h2>
<p>
<a href="#example1">Jump to Paragraph 1</a>
</p>
<p>
<a href="#example2">Jump to Paragraph 2</a>
</p>
<p id="example1">
Paragraph 1
</p>
<p id="example2">
Paragraph 2
</p>
</body>
</html>
使用 :target 伪类创建选项卡式菜单的示例：
<!DOCTYPE html>
<html>
<head>
<style>
.tab-menu div {
display: none;
background-color: #f5f5f5;
padding: 0 20px 20px;
}
.tab-menu a {
text-decoration: none;
padding: 10px;
margin: 20px 0;
display: inline-block;
}
.tab-menu div:target {
display: block;
}
</style>
</head>
<body>
<h1>:target selector example</h1>
<div class="tab-menu">
<a href="#html">HTML</a>
<a href="#css">CSS</a>
<a href="#php">PHP</a>
<div id="html">
<h2>
<a href="https://www.onitroad.com/html.html">Lean HTML</a>
</h2>
<p>HTML-Hyper Text Markup Language
</p>
</div>
<div id="css">
<h2>
<a href="https://www.onitroad.com/css.html">Learn CSS</a>
</h2>
<p>CSS-Cascading Style Sheets
</p>
</div>
<div id="php">
<h2>
<a href="https://www.onitroad.com/php.html">Learn PHP</a>
</h2>
<p>PHP-Hyertext Preprocessor
</p>
</div>
</div>
</body>
</html>
使用 :target 伪类创建模态框的示例：
<!DOCTYPE html>
<html>
<head>
<style>
h1+a {
text-decoration: none;
padding: 10px 20px;
background-color: #8ebf42;
color: #ffffff;
font-family: sans-serif;
}
/* Add animation (Chrome, Safari, Opera) */
@-webkit-keyframes example {
from {
top: -100px;
opacity: 0;
}
to {
top: 0px;
opacity: 1;
}
}
/* Add animation (Standard syntax) */
@keyframes example {
from {
top: -100px;
opacity: 0;
}
to {
top: 0px;
opacity: 1;
}
}
/* The modal's background */
.modal {
display: none;
position: fixed;
left: 0;
top: 0;
width: 100%;
height: 100%;
overflow: auto;
background-color: rgb(0, 0, 0);
background-color: rgba(0, 0, 0, 0.4);
}
/* Display the modal when targeted */
.modal:target {
display: table;
position: absolute;
}
/* The modal box */
.modal-dialog {
display: table-cell;
vertical-align: middle;
}
/* The modal's content */
.modal-dialog .modal-content {
margin: auto;
background-color: #f3f3f3;
position: relative;
padding: 0;
outline: 0;
border: 1px #777 solid;
text-align: justify;
width: 80%;
box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.2), 0 6px 20px 0 rgba(0, 0, 0, 0.19);
/* Add animation */
-webkit-animation-name: example;
/* Chrome, Safari, Opera */
-webkit-animation-duration: 0.5s;
/* Chrome, Safari, Opera */
animation-name: example;
animation-duration: 0.5s;
}
/* The button used to close the modal */
.closebtn {
text-decoration: none;
float: right;
font-size: 35px;
font-weight: bold;
color: #fff;
}
.closebtn:hover,
.closebtn:focus {
color: #000;
text-decoration: none;
cursor: pointer;
}
.container {
padding: 2px 16px;
text-align: center;
line-height: 1.6;
}
header {
background-color: #337ab7;
font-size: 25px;
color: white;
}
header h2 {
text-align: left;
}
footer {
background-color: #337ab7;
font-size: 20px;
color: white;
}
footer p {
text-align: right;
}
</style>
</head>
<body>
<h1>:target selector example</h1>
<a href="#modal">Open Modal</a>
<div id="modal" class="modal">
<div class="modal-dialog">
<div class="modal-content">
<header class="container">
<a href="#" class="closebtn">×</a>
<h2>Header</h2>
</header>
<div class="container">
<p>经历过风雨，才懂得阳光的温暖。 今天很残酷，明天很残酷，后天很美好。很多人死在了明天的夜里。
</p>
</div>
<footer class="container">
<p>Footer</p>
</footer>
</div>
</div>
</div>
</body>
</html>
模态框和轻盒子之间略有不同。
轻盒子可以通过在弹出窗口外单击来关闭，而模态框只能通过在弹出窗口内进行交互来关闭。
使用 :target 伪类创建灯箱的示例：
<!DOCTYPE html>
<html>
<head>
<style>
h1+a {
background-color: #8ebf42;
padding: 20px 40px;
color: #ffffff;
text-decoration: none;
font-size: 20px;
margin: 15px 0;
display: inline-block;
}
/* Unopened lightbox */
.lightbox {
display: none;
}
/* Opened lightbox */
.lightbox:target {
position: absolute;
left: 0;
top: 0;
width: 100%;
height: 100%;
display: flex;
align-items: center;
justify-content: center;
}
/* Lightbox content */
.lightbox figcaption {
width: 25rem;
position: relative;
padding: 1.5em;
background-color: #8ebf42;
}
/* Close button */
.lightbox .close {
position: relative;
display: block;
}
.lightbox .close::after {
right: -1rem;
top: -1rem;
width: 2rem;
height: 2rem;
position: absolute;
display: flex;
z-index: 1;
align-items: center;
justify-content: center;
background-color: black;
border-radius: 50%;
color: white;
content: "×";
cursor: pointer;
}
/* Lightbox overlay */
.lightbox .close::before {
left: 0;
top: 0;
width: 100%;
height: 100%;
position: fixed;
background-color: rgba(0, 0, 0, .7);
content: "";
cursor: default;
}
</style>
</head>
<body>
<h1>:target selector example</h1>
<a href="#lightbox">Open Lightbox</a>
<div class="lightbox" id="lightbox">
<figure>
<a href="#" class="close"></a>
<figcaption>今天很残酷，明天很残酷，后天很美好。很多人死在了明天的夜里。
</figcaption>
</figure>
</div>
</body>
</html>
:target 伪类用于突出显示从目录链接到的页面部分。
它为作为文档中内部链接目标的元素设置样式。
:target 伪类表示具有与 URL 片段匹配的 id 的目标元素。
纯CSS 轻量盒子
：target伪类用于创建没有任何JavaScript部分的lightbox。默认情况下，此方法使用锚定链接的功能指向隐藏在页面上的那些元素。当它们成为目标时，CSS会改变它们的显示以便显示。
日期：2020-06-02 22:14:47 来源：oir作者：oir