下面是导航栏的html,css和Javascript代码。这里只有当我们点击各自的图标(即伦敦,巴黎,东京)时才显示每个导航栏的内容,但我想要的内容每当加载页面时,首先显示的第一个导航栏。可以对以下代码进行哪些更改? HTML代码:
<head>
<style>
#footer {
background-color:black;
color:white;
clear:both;
text-align:center;
padding:5px;
width:100%;
align:center;
}
ul.tab {
list-style-type: none;
margin: 0;
padding: 0;
overflow: hidden;
border: 1px solid #ccc;
background-color: #f1f1f1;
width: 90%;
}
ul.tab li {float: left;}
ul.tab li a {
display: inline-block;
color: black;
text-align: center;
padding: 14px 16px;
text-decoration: none;
transition: 0.3s;
font-size: 17px;
}
ul.tab li a:hover {
background-color: #ddd;
}
ul.tab li a:focus, .active {
background-color: #ccc;
}
.tabcontent {
display: none;
padding: 6px 12px;
-webkit-animation: fadeEffect 1s;
animation: fadeEffect 1s;
padding-left: 5%;
}
@-webkit-keyframes fadeEffect {
from {opacity: 0;}
to {opacity: 1;}
}
@keyframes fadeEffect {
from {opacity: 0;}
to {opacity: 1;}
}
</style>
<script>
function openCity(evt, cityName) {
var i, tabcontent, tablinks;
tabcontent = document.getElementsByClassName("tabcontent");
for (i = 0; i < tabcontent.length; i++) {
tabcontent[i].style.display = "none";
}
tablinks = document.getElementsByClassName("tablinks");
for (i = 0; i < tablinks.length; i++) {
tablinks[i].className = tablinks[i].className.replace(" active", "");
}
document.getElementById(cityName).style.display = "block";
evt.currentTarget.className += " active";
}
</script>
</head>
<body>
<center>
<ul class="tab">
<li><a href="#" class="tablinks" onclick="openCity(event, 'London')">London</a></li>
<li><a href="#" class="tablinks" onclick="openCity(event, 'Paris')">Paris</a></li>
<li><a href="#" class="tablinks" onclick="openCity(event, 'Tokyo')">Tokyo</a></li>
</ul>
</center>
<br>
<br>
<div id="London" class="tabcontent">
<h3>London</h3>
London is the capital city of England.</p>
</div>
<div id="Paris" class="tabcontent">
<h3>Paris</h3>
<p>Paris is the capital of France.</p>
</div>
<div id="Tokyo" class="tabcontent">
<h3>Tokyo</h3>
<p>Tokyo is the capital of Japan.</p>
</div>
<br>
<br>
<div id="footer">
© Cities
</div>
</body>
</html>
答案 0 :(得分:0)
请在创建新问题之前进行搜索。 你可以让你的第一个tabcontent显示。可以是内联html或css:
.tabcontent:nth-of-type(1){display:block;}