我希望第二个和第三个标签在点击时才可见。有人可以看下面的代码,并帮我弄清楚如何实现这一目标?现在,默认显示三个选项卡,直到单击其中一个选项卡,之后仅显示选定的选项卡。
非常感谢!
<div class="tab"><button class="tablinks" onclick="openCity(event,
'General')"><span size="4" style="font-size: small;"><span color="grey"
style="color: grey;"><b>General</b></span></span></button> <button
class="tablinks" onclick="openCity(event, 'Product Specifications')"><span
size="4" style="font-size: small;"><span color="grey" style="color: grey;">
<b>Product Specifications</b></span></span></button><button class="tablinks"
onclick="openCity(event, 'Guarantee')"><span size="4" style="font-size:
small;"><span color="grey" style="color: grey;"><b>Guarantee</b></span>
</span></button></div>
<div id="General" class="tabcontent">
CONTENT
</div>
<div id="Product Specifications" class="tabcontent">
CONTENT
</div>
<div id="Guarantee" class="tabcontent">
CONTENT
</div>
<script>// <![CDATA[
function openCity(evt, cityName) {
// Declare all variables
var i, tabcontent, tablinks;
// Get all elements with class="tabcontent" and hide them
tabcontent = document.getElementsByClassName("tabcontent");
for (i = 0; i < tabcontent.length; i++) {
tabcontent[i].style.display = "none";
}
// Get all elements with class="tablinks" and remove the class "active"
tablinks = document.getElementsByClassName("tablinks");
for (i = 0; i < tablinks.length; i++) {
tablinks[i].className = tablinks[i].className.replace(" active",
"");
}
// Show the current tab, and add an "active" class to the button that
opened the tab
document.getElementById(cityName).style.display = "block";
evt.currentTarget.className += " active";
}
// ]]></script>