我想为组织的GCSE选项创建一个网站，我目前正在使用Notepad ++起草它。我部分是新手。
我想创建一个可悬停的下拉列表，其中列出了所有选项，如果点击，它会打开一张关于主题的卡片。我喜欢Material Design概念，这里是代码的一部分：
[FunctionName("DeleteDocument")]
public static async Task Run(
[TimerTrigger("00:01", RunOnStartup = true)] TimerInfo timer,
[DocumentDB] DocumentClient client,
TraceWriter log)
{
var collectionUri = UriFactory.CreateDocumentCollectionUri("ItemDb", "ItemCollection");
var documents = client.CreateDocumentQuery(collectionUri);
foreach (Document d in documents)
{
await client.DeleteDocumentAsync(d.SelfLink);
}
}
/* Style The Dropdown Button */
.dropbtn {
background-color: #4CAF50;
color: white;
padding: 16px;
font-size: 16px;
border: none;
cursor: pointer;
}
/* The container <div> - needed to position the dropdown content */
.dropdown {
position: relative;
display: inline-block;
}
/* Dropdown Content (Hidden by Default) */
.dropdown-content {
display: none;
position: absolute;
background-color: #f9f9f9;
min-width: 160px;
box-shadow: 0px 8px 16px 0px rgba(0, 0, 0, 0.2);
z-index: 1;
}
/* Links inside the dropdown */
.dropdown-content a {
color: black;
padding: 12px 16px;
text-decoration: none;
display: block;
}
/* Change color of dropdown links on hover */
.dropdown-content a:hover {
background-color: #f1f1f1
}
/* Show the dropdown menu on hover */
.dropdown:hover .dropdown-content {
display: block;
}
/* Change the background color of the dropdown button when the dropdown content is shown */
.dropdown:hover .dropbtn {
background-color: #3e8e41;
}
然后，我还想将每个主题链接到这种卡： https://getmdl.io/components/index.html#cards-section
我制作了样卡：
<link rel="stylesheet" href="https://fonts.googleapis.com/icon?family=Material+Icons">
<link rel="stylesheet" href="https://code.getmdl.io/1.3.0/material.indigo-pink.min.css">
<script defer src="https://code.getmdl.io/1.3.0/material.min.js"></script>
<div class="dropdown">
<button class="dropbtn">Compulsary</button>
<div class="dropdown-content">
<a href="#">English Language</a>
<a href="#">English Literature</a>
<a href="#">Mathematics</a>
</div>
</div>.demo-card-wide.mdl-card {
width: 512px;
}
.demo-card-wide>.mdl-card__title {
color: #fff;
height: 176px;
background: url('https://www.tes.com/sites/default/files/maths_blackboard.jpg') center / cover;
}
.demo-card-wide>.mdl-card__menu {
color: #fff;
}
如何将卡片链接到其中一个下拉选项，这样就会打开，如何连接卡片上的“完成”按钮以关闭卡片？
请帮助我。
答案 0 :(得分：3)
通过链接卡片，我相信您的意思是说您希望在点击链接时弹出卡片。这可以使用javascript / jquery轻松实现。一个纯粹的＆＃34; hacky＆＃34; css解决方案也是可行的，但不建议使用。
以下解决方案使用jQuery
$(document).ready(function() {
$(".dropdown-content a").click(function() {
$(".background-mask").show();
$(".demo-card-wide.mdl-card").show();
$(".mdl-card__supporting-text").text(
$(this).attr("data-content")
);
$(".demo-card-wide>.mdl-card__title").css('background', 'url(' + $(this).attr("data-img") + ') center / cover')
});
$(".mdl-button").click(function() {
$(".demo-card-wide.mdl-card").hide();
$(".background-mask").hide();
});
});/* Style The Dropdown Button */
body {
position: relative;
}
.dropbtn {
background-color: #4CAF50;
color: white;
padding: 16px;
font-size: 16px;
border: none;
cursor: pointer;
}
/* The container <div> - needed to position the dropdown content */
.dropdown {
position: relative;
display: inline-block;
z-index: 0;
}
/* Dropdown Content (Hidden by Default) */
.dropdown-content {
display: none;
position: absolute;
background-color: #f9f9f9;
min-width: 160px;
box-shadow: 0px 8px 16px 0px rgba(0, 0, 0, 0.2);
z-index: 1;
}
/* Links inside the dropdown */
.dropdown-content a {
color: black;
padding: 12px 16px;
text-decoration: none;
display: block;
}
/* Change color of dropdown links on hover */
.dropdown-content a:hover {
background-color: #f1f1f1
}
/* Show the dropdown menu on hover */
.dropdown:hover .dropdown-content {
display: block;
}
/* Change the background color of the dropdown button when the dropdown content is shown */
.dropdown:hover .dropbtn {
background-color: #3e8e41;
}
.demo-card-wide.mdl-card {
width: 512px;
display: none;
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
}
.demo-card-wide>.mdl-card__title {
color: #fff;
height: 176px;
}
.demo-card-wide>.mdl-card__menu {
color: #fff;
}
.background-mask {
display: none;
position: absolute;
width: 100vw;
height: 100vh;
top: 0;
left: 0;
background-color: rgba(0, 0, 0, 0.7);
}<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<link rel="stylesheet" href="https://fonts.googleapis.com/icon?family=Material+Icons">
<link rel="stylesheet" href="https://code.getmdl.io/1.3.0/material.indigo-pink.min.css">
<script defer src="https://code.getmdl.io/1.3.0/material.min.js"></script>
<div class="dropdown">
<button class="dropbtn">Compulsary</button>
<div class="dropdown-content">
<a href="#" data-content="English Language Content" data-img="https://www.tes.com/sites/default/files/maths_blackboard.jpg">English Language</a>
<a href="#" data-content="English Literature Content" data-img="https://images7.content-hcs.com/commimg/myhotcourses/blog/post/myhc_24232.jpg">English Literature</a>
<a href="#" data-content="Mathematics Content" data-img="https://c.tadst.com/gfx/750w/english-language-day.jpg">Mathematics</a>
</div>
</div>
<div class="background-mask"></div>
<div class="demo-card-wide mdl-card mdl-shadow--2dp">
<div class="mdl-card__title">
<h2 class="mdl-card__title-text">Mathematics</h2>
</div>
<div class="mdl-card__supporting-text">
This is one of the compulsary subjects and is crucial. It involves geometry, algebra, data, and numbers.
</div>
<div class="mdl-card__actions mdl-card--border">
<a class="mdl-button mdl-button--colored mdl-js-button mdl-js-ripple-effect">
Done
</a>
</div>
</div>
更新：
使用数据属性将相关内容添加到可插入卡中的链接。在这种情况下，我添加了以下内容：
<a href="#" data-content="English Language Content" data-img="https://www.tes.com/sites/default/files/maths_blackboard.jpg">English Language</a>
<a href="#" data-content="English Literature Content" data-img="https://images7.content-hcs.com/commimg/myhotcourses/blog/post/myhc_24232.jpg">English Literature</a>
<a href="#" data-content="Mathematics Content" data-img="https://c.tadst.com/gfx/750w/english-language-day.jpg">Mathematics</a>