我在我的 Angular 6 应用程序中编写导航栏组件。
<div class="navbar">
<ul>
<li><a href="default.asp">tekst</a></li>
<li><a href="news.asp">tekst</a></li>
<div class="dropdown">
<button class="dropbtn">Dropdown
<i class="fa fa-caret-down"></i>
</button>
<div class="dropdown-content">
<a href="#">Link 1</a>
<a href="#">Link 2</a>
<a href="#">Link 3</a>
</div>
</div>
</ul>
</div>
和 .css 文件:
ul {
list-style-type: none;
margin: 0;
padding: 0;
overflow: hidden;
background-color: #e8d625;
position: fixed;
top: 0;
width: 100%
}
li {
float: left;
}
li a {
display: block;
color: #090909;
text-align: center;
font-weight: bold;
padding: 14px 16px;
text-decoration: none;
}
/* Change the link color to #111 (black) on hover */
li a:hover {
background-color: #f7e525;
}
.active {
background-color: #f7e525;
}
.dropdown {
float: left;
overflow: hidden;
}
.dropdown .dropbtn {
font-size: 16px;
border: none;
outline: none;
color: #77ffb7;
padding: 14px 16px;
background-color: inherit;
font-family: inherit; /* Important for vertical align on mobile phones */
margin: 0; /* Important for vertical align on mobile phones */
}
.navbar a:hover, .dropdown:hover .dropbtn {
background-color: #f7e525;
}
/* Dropdown content (hidden by default) */
.dropdown-content {
display: none;
position: absolute;
background-color: #80f987;
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 {
float: none;
color: black;
padding: 12px 16px;
text-decoration: none;
display: block;
text-align: left;
}
/* Add a grey background color to dropdown links on hover */
.dropdown-content a:hover {
background-color: #80f987;
}
/* Show the dropdown menu on hover */
.dropdown:hover .dropdown-content {
display: block;
}
但它不起作用。 当我使用鼠标时,下拉菜单不显示任何内容。很难说,但我使用 https://www.w3schools.com/css/css_dropdowns.asp . 我没有图书馆吗?
还有其他问题。我以后可以在下拉列表中使用吗?因为我使用 RoutingModule。
非常感谢所有的回答。
编辑: 添加左侧导航栏
<ul>
<li><a href="default.asp">Calendar</a></li>
<li><a href="news.asp">info1</a></li>
<li><a href="contact.asp">info2</a></li>
<li><a href="contact.asp">info3</a></li>
<li><a href="contact.asp">info4</a></li>
</ul>
ul {
list-style-type: none;
margin-top: 45px;
padding: 0;
width: 200px;
background-color: #f1f1f1;
height: 100%;
position: fixed;
}
li a {
display: block;
color: #000;
padding: 8px 16px;
text-decoration: none;
}
/* Change the link color on hover */
li a:hover {
background-color: #555;
color: white;
}
最佳答案
您需要从 ul
中删除 overflow: hidden
规则,否则下拉列表将不可见。
ul {
list-style-type: none;
margin: 0;
padding: 0;
background-color: #e8d625;
position: fixed;
top: 0;
width: 100%;
z-index: 5;
}
li {
float: left;
}
li a {
display: block;
color: #090909;
text-align: center;
font-weight: bold;
padding: 14px 16px;
text-decoration: none;
}
/* Change the link color to #111 (black) on hover */
li a:hover {
background-color: #f7e525;
}
.active {
background-color: #f7e525;
}
.dropdown {
float: left;
overflow: hidden;
}
.dropdown .dropbtn {
font-size: 16px;
border: none;
outline: none;
color: #77ffb7;
padding: 14px 16px;
background-color: inherit;
font-family: inherit; /* Important for vertical align on mobile phones */
margin: 0; /* Important for vertical align on mobile phones */
}
.navbar a:hover, .dropdown:hover .dropbtn {
background-color: #f7e525;
}
/* Dropdown content (hidden by default) */
.dropdown-content {
display: none;
position: absolute;
background-color: #80f987;
min-width: 160px;
box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
}
/* Links inside the dropdown */
.dropdown-content a {
float: none;
color: black;
padding: 12px 16px;
text-decoration: none;
display: block;
text-align: left;
position: relative;
}
/* Add a grey background color to dropdown links on hover */
.dropdown-content a:hover {
background-color: #80f987;
}
/* Show the dropdown menu on hover */
.dropdown:hover .dropdown-content {
display: block;
}
ul.side {
list-style-type: none;
margin-top: 45px;
padding: 0;
width: 200px;
background-color: #f1f1f1;
height: 100%;
position: fixed;
z-index: 1;
}
.side li a {
display: block;
color: #000;
padding: 8px 16px;
text-decoration: none;
}
/* Change the link color on hover */
.side li a:hover {
background-color: #555;
color: white;
}
<div class="navbar">
<ul>
<li><a href="default.asp">tekst</a></li>
<li><a href="news.asp">tekst</a></li>
<div class="dropdown">
<button class="dropbtn">Dropdown
<i class="fa fa-caret-down"></i>
</button>
<div class="dropdown-content">
<a href="#">Link 1</a>
<a href="#">Link 2</a>
<a href="#">Link 3</a>
</div>
</div>
</ul>
</div>
<ul class="side">
<li><a href="default.asp">Calendar</a></li>
<li><a href="news.asp">info1</a></li>
<li><a href="contact.asp">info2</a></li>
<li><a href="contact.asp">info3</a></li>
<li><a href="contact.asp">info4</a></li>
</ul>
关于html - 导航栏中的下拉列表不显示元素列表(Angular 6),我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/52237900/