我是新的css html和js。我的问题是,下拉菜单就像一半的窗口,我不知道我怎么能定位下拉菜单。我试过的所有方法都不起作用。下拉菜单的第二个问题是,只有当我点击按钮的某个部分时,下拉菜单才会出现。你们能帮帮我吗?这是我的代码:
window.onclick = function(event) {
if (!event.target.matches('.dropdiv')) {
var dropdowns = document.getElementsByClassName("dropdown-content");
var i;
for (i = 0; i < dropdowns.length; i++) {
var openDropdown = dropdowns[i];
if (openDropdown.classList.contains('show')) {
openDropdown.classList.remove('show');
}
}
}
}
.dropdiv {
background-color: #001155;
width: 40px;
height: 22px;
}
.dropdivs {
height: 4px;
width: 29px;
background-color: white;
color: white;
border: #001155;
border-radius: 5px;
margin: 2px;
}
/* Dropdown Button */
.dropbutton {
background-color: #001155;
color: white;
padding: 13px;
font-size: 14px;
border: none;
cursor: pointer;
}
.dropdown {
position: absolute;
display: inline-block;
top: 0;
right: 0;
}
.dropdown-content {
display: none;
position: absolute;
background-color: #f9f9f9;
min-width: 160px;
box-shadow: 0px 8px 16px 0px rgba(0, 0, 0, 0.2);
}
/* Dropdown Links*/
.dropdown-content a {
color: black;
padding: 12px 16px;
text-decoration: none;
display: block;
}
.dropdown-content a:hover {
background-color: #f1f1f1
}
.show {
display: block;
}
<div class="dropdown">
<button onclick="myFunction()" class="dropbutton">
<div class="dropdiv">
<div class="dropdivs"></div>
<div class="dropdivs"></div>
<div class="dropdivs"></div>
</div>
</button>
<div id="inhalt" class="dropdown-content">
<a href="https://www.google.ch/">Google</a>
<a href="https://intranet.swisscom.com/home/#/">Intranet</a>
<a href="https://www.facebook.com/">Facebook</a>
</div>
</div>
这就是答案,但对我来说不是一个很好的方式来创建一个下拉菜单,我相信你会在谷歌上找到新的方法,并为一些提示:响应式顶部导航从w3schools.com
window.onclick = function(event) {
if (!event.target.matches('.dropdiv')) {
var dropdowns = document.getElementsByClassName("dropdown-content");
var i;
for (i = 0; i < dropdowns.length; i++) {
var openDropdown = dropdowns[i];
if (openDropdown.classList.contains('show'))
openDropdown.classList.remove('show');
else
openDropdown.classList.add('show');
}
}
}
.dropdiv {
background-color: #001155;
width: 40px;
height: 22px;
}
.dropdivs {
height: 4px;
width: 29px;
background-color: white;
color: white;
border: #001155;
border-radius: 5px;
margin: 2px;
}
/* Dropdown Button */
.dropbutton {
background-color: #001155;
color: white;
padding: 13px;
font-size: 14px;
border: none;
cursor: pointer;
}
.dropdown {
position: absolute;
display: inline-block;
top: 0;
right: 0;
}
.dropdown-content {
display: none;
position: absolute;
background-color: #f9f9f9;
right:0;
min-width: 160px;
box-shadow: 0px 8px 16px 0px rgba(0, 0, 0, 0.2);
}
/* Dropdown Links*/
.dropdown-content a {
color: black;
padding: 12px 16px;
text-decoration: none;
display: block;
}
.dropdown-content a:hover {
background-color: #f1f1f1
}
.dropdown-content.show {
display: block;
}
<div class="dropdown">
<button class="dropbutton">
<div class="dropdiv">
<div class="dropdivs"></div>
<div class="dropdivs"></div>
<div class="dropdivs"></div>
</div>
</button>
<div id="inhalt" class="dropdown-content">
<a href="https://www.google.ch/">Google</a>
<a href="https://intranet.swisscom.com/home/#/">Intranet</a>
<a href="https://www.facebook.com/">Facebook</a>
</div>
</div>