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javascript - 侧边导航 html/css/javascript

转载 作者:行者123 更新时间:2023-11-28 04:19:51 24 4
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我使用下拉列表进行了侧边导航。但它不起作用。我列出了一个应该下拉的列表,但实际上只有一半列表会下拉。我希望所有内容都下拉并出现一个滚动条,这样菜单就不会太长。

有人可以帮我解决这个问题吗?

这是我的代码:

html {
background-color: #CEF6F5;
width: auto;
height: auto;
}

p {
color: black;
}

h {
color: black;
font-size: 40px;
padding-left: 18px;
font-family: Castellar;
}

u1.img-list {
list-style-type: none;
margin: 0;
padding 0;
text-align: center;
text-decoration: none;
}

ul.img-list li {
display: inline-block;
height: 150px;
margin: 0 1em 1em 0;
position: relative;
width: 150px;
text-decoration: none;
}

span {
font-size: 50px;
}

span.text-content {
background: rgba(0, 0, 0, 0.5);
color: white;
cursor: pointer;
display: table;
height: 150px;
left: 0;
position: absolute;
top: 0;
width: 150px;
}

span.text-content span {
display: table-cell;
text-align: center;
vertical-align: middle;
}

span.text-content {
background: rgba(0, 0, 0, 0.5);
color: white;
cursor: pointer;
display: table;
height: 150px;
left: 0;
position: absolute;
top: 0;
width: 150px;
opacity: 0;
}

ul.img-list li:hover span.text-content {
opacity: 1;
}

span.text-content {
background: rgba(0, 0, 0, 0.5);
color: white;
cursor: pointer;
display: table;
height: 150px;
left: 0;
position: absolute;
top: 0;
width: 150px;
opacity: 0;
-webkit-transition: opacity 500ms;
-moz-transition: opacity 500ms;
-o-transition: opacity 500ms;
transition: opacity 500ms;
}

#one {
background-color: #F3F781;
color: black;
width: 850px;
height: auto;
margin-top: 5px;
margin-left: 1;
padding: 5px 5px 5px 5px;
float: right;
border-style: double;
}

.a {
width: auto;
padding: 0px;
}

.sidenav {
height: 100%;
width: 313px;
position: absolute;
z-index: 1;
top: 0;
left: 0;
background-color: #111;
overflow-x: hidden;
padding-top: 60px;
transition: 0.5s;
}

.sidenav a {
padding: 8px 8px 8px 32px;
text-decoration: none;
font-size: 25px;
color: #818181;
display: block;
transition: 0.3s;
font-family: Helvetica;
}

.sidenav a:hover,
.offcanvas a:focus {
color: #f1f1f1;
}

.closebtn {
position: absolute;
top: 0;
right: 25px;
font-size: 36px;
margin-left: 50px;
}

@media screen and (max-height: 450px) {
.sidenav {
padding-top: 15px;
}
.sidenav a {
font-size: 18px;
}
}

button.accordion {
background-color: #111;
color: #111;
cursor: pointer;
padding: 18px;
width: 100%;
text-align: left;
border: none;
outline: none;
transition: 0.4s;
}

button.accordion.active,
button.accordion:hover {
background-color: #111;
}

div.panel {
padding: 0 0px;
background-color: black;
display: none;
}

div.panel.show {
display: block;
}

div.panel {
padding: 0 0px;
background-color: black;
max-height: 0;
overflow: hidden;
transition: 0.6s ease-in-out;
opacity: 0;
}

div.panel.show {
opacity: 1;
max-height: 500px;
}

button.accordion {
background-color: #111;
color: #444;
cursor: pointer;
padding: 0px;
width: 100%;
border: none;
text-align: left;
outline: none;
font-size: 15px;
transition: 0.4s;
}

button.accordion.active,
button.accordion:hover {
background-color: #111;
}

button.accordion:after {
content: '\02795';
font-size: 13px;
color: #777;
float: right;
margin-right: 15px;
}

button.accordion.active:after {
content: "\2796";
}

div.panel {
padding: 0 0px;
background-color: #111;
max-height: 0;
overflow: hidden;
transition: 0.6s ease-in-out;
opacity: 0;
}

div.panel.show {
opacity: 1;
max-height: 500px;
}

li {
margin-left: 20px;
list-style: none;
}

footer {
margin-top: 100000px;
}

#left {
float: left;
margin-left: 0px;
}

#ten {
font-size: 45px;
}
<!DOCTYPE html>
<html lang="nl">

<head>
<title>
Latijnse geschiedenis
</title>

<meta charset="utf-8">

<link rel="stylesheet" href="Home.css">

</head>

<body>
<div id="mySidenav" class="sidenav">
<a href="javascript:void(0)" class="closebtn" onclick="closeNav()">×</a>
<a href="#">Home</a>
<button class="accordion"><a href="#">Informatie</a> </button>
<div class="panel">


<tr id="two">
<div id="left">
<li>
<a href="115.000.html">115.000 v.C</a>
<a href="200.html">200</a>
<a href="plaatje3.html">1652</a>
<a href="plaatje4.html">1713</a>
<a href="plaatje5.html">1779</a>
<a href="plaatje6.html">1795</a>
<a href="plaatje7.html">1803</a>
<a href="1835.html">1835</a>
<a href="1849.html">1849</a>
<a href="1852.html">1852</a>
<a href="1855.html">1855</a>
<a href="1858.html">1858</a>
<a href="1859.html">1859</a>
<a href="1880.html">1880</a>
<a href="1912.html">1912</a>
<a href="1930.html">1930</a>
<a href="1948.html">1948</a>
<a href="1964.html">1964</a>
<a href="1983.html">1983</a>
<a href="1997.html">1997</a>
<a href="2013.html">2013</a>
</li>
</div>
</tr>
</div>
</div>

<span style="font-size:30px;cursor:pointer" onclick="openNav()">☰</span>

<h>Tijdlijn van de geschiedenis van de Romeinen</h>

<script>
function openNav() {
document.getElementById("mySidenav").style.width = "313px";
}

function closeNav() {
document.getElementById("mySidenav").style.width = "0";
}

var acc = document.getElementsByClassName("accordion");
var i;

for (i = 0; i < acc.length; i++) {
acc[i].onclick = function() {
this.classList.toggle("active");
this.nextElementSibling.classList.toggle("show");
}
}
</script>

<ul class="img-list">
<li>
<a href="Aeneas.html">
<img src="1.jpg" width="150" height="150" />
<span class="text-content"><span id= "ten">115.000 v.C</span></span>
</a>
</li>
<li>
<a href="2.html">
<img src="2.jpg" width="150" height="150" />
<span class="text-content"><span>200</span></span>
</a>
</li>
<li>
<a href="3.html">
<img src="3.png" width="150" height="150" />
<span class="text-content"><span>1652</span></span>
</a>
</li>
<li>
<a href="4.html">
<img src="4.png" width="150" height="150" />
<span class="text-content"><span>1713</span></span>
</a>
</li>
<li>
<a href="5.html">
<img src="5.jpg" width="150" height="150" />
<span class="text-content"><span>1779</span></span>
</a>
</li>
<li>
<a href="6.html">
<img src="6.jpg" width="150" height="150" />
<span class="text-content"><span>1795</span></span>
</a>
</li>
<li>
<a href="7.html">
<img src="7.jpg" width="150" height="150" />
<span class="text-content"><span>1803</span></span>
</a>
</li>
<li>
<a href="8.html">
<img src="8.png" width="150" height="150" />
<span class="text-content"><span>1835</span></span>
</a>
</li>
<li>
<a href="1849.html">
<img src="1849.jpg" width="150" height="150" />
<span class="text-content"><span>1849</span></span>
</a>
</li>
<li>
<a href="1852.html">
<img src="1852.jpg" width="150" height="150" />
<span class="text-content"><span>1852</span></span>
</a>
</li>
<li>
<a href="1855.html">
<img src="1855.png" width="150" height="150" />
<span class="text-content"><span>1855</span></span>
</a>
</li>
<li>
<a href="1858.html">
<img src="1858.jpg" width="150" height="150" />
<span class="text-content"><span>1858</span></span>
</a>
</li>
<li>
<a href="1859.html">
<img src="1859.jpg" width="150" height="150" />
<span class="text-content"><span>1859</span></span>
</a>
</li>
<li>
<a href="1880.html">
<img src="1880.png" width="150" height="150" />
<span class="text-content"><span>1880</span></span>
</a>
</li>
<li>
<a href="1912.html">
<img src="1912.png" width="150" height="150" />
<span class="text-content"><span>1912</span></span>
</a>
</li>
<li>
<a href="1930.html">
<img src="1930goed.jpg" width="150" height="150" />
<span class="text-content"><span>1930</span></span>
</a>
</li>
<li>
<a href="1948.html">
<img src="1948.jpg" width="150" height="150" />
<span class="text-content"><span>1948</span></span>
</a>
</li>
<li>
<a href="1964.html">
<img src="1964.jpg" width="150" height="150" />
<span class="text-content"><span>1964</span></span>
</a>
</li>
<li>
<a href="1983.html">
<img src="1983.png" width="150" height="150" />
<span class="text-content"><span>1983</span></span>
</a>
</li>
<li>
<a href="1997.html">
<img src="1997!.jpg" width="150" height="150" />
<span class="text-content"><span>1997</span></span>
</a>
</li>
<li>
<a href="2013.html">
<img src="2013.png" width="150" height="150" />
<span class="text-content"><span>2013</span></span>
</a>
</li>
</ul>
<footer>

</footer>

</body>

</html>

最佳答案

也许这可以帮助您:https://www.w3schools.com/w3css/tryit.asp?filename=tryw3css_sidenav_shift

<!DOCTYPE html>
<html>
<title>W3.CSS</title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="/lib/w3.css">
<body>

<nav class="w3-sidenav w3-white w3-card-2 w3-animate-left" style="display:none" id="mySidenav">
<a href="javascript:void(0)"
onclick="w3_close()"
class="w3-closenav w3-large">Close &times;</a>
<a href="#">Link 1</a>
<a href="#">Link 2</a>
<a href="#">Link 3</a>
<a href="#">Link 4</a>
<a href="#">Link 5</a>
</nav>

<div id="main">

<header class="w3-container w3-teal">
<span class="w3-opennav w3-xlarge" onclick="w3_open()" id="openNav">&#9776;</span>
<h1>My Header</h1>
</header>

<img src="img_car.jpg" alt="Car" style="width:100%">

<div class="w3-container">
<p>In this example, the sidenav is hidden (style="display:none") and is only shown when you click on the menu icon in the top left corner. When it is opened, it shifts the page content to the right (we use JavaScript to add a 25% left margin to the div element with id="main" when this happens. The value "25%" matches the value used to set the width of the sidenav. Tip: If you change the left margin to 40%, you should change the width of the sidenav to 40% as well.</p>
</div>

<footer class="w3-container w3-teal">
<h5>Footer</h5>
<p>Footer information goes here</p>
</footer>

</div>

<script>
function w3_open() {
document.getElementById("main").style.marginLeft = "25%";
document.getElementById("mySidenav").style.width = "25%";
document.getElementById("mySidenav").style.display = "block";
document.getElementById("openNav").style.display = 'none';
}
function w3_close() {
document.getElementById("main").style.marginLeft = "0%";
document.getElementById("mySidenav").style.display = "none";
document.getElementById("openNav").style.display = "inline-block";
}
</script>

</body>
</html>

关于javascript - 侧边导航 html/css/javascript,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/42267751/

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