我正在为我的网页创建一个“可切换标签”导航栏。我已经想出了如何通过遵循w3schools教程创建可切换选项卡,但我并不想弄清楚如何修改其外观,以便它具有指向活动选项卡的向上箭头,如下图所示。有谁知道一种方法来实现这一目标? 在活动的可切换标签上添加图像HTML/CSS
这里是我的标签代码:
<ul class="navtabs">
<li><a href="#" class="tablinks" onclick="openLink(event, 'about')">About</a></li>
<li><a href="study.html">How to Study</a></li>
<li><a href="#" class="tablinks" onclick="openLink(event, 'help')">Helpful Links</a></li>
<li><a href="#" class="tablinks" onclick="openLink(event, 'comment')">Comments</a></li>
</ul>
<div id="about">
<h1>About</h1>
<p>HERE IS A DESCRIPTION OF ABOUT THE SITE YADAYADA</p>
</div>
<div id="help">
<h1>Helpful Links</h1>
<p>THERE WILL BE LINKS HERE JUST U WAIT</p>
</div>
<div id="comment">
<h1>Comments</h1>
<p>U CAN LEAVE COMMENTS HERE ABOUT UR OWN TIPS/TRICKS FOR STUDYING</p>
</div>
<script>
function openLink(evt, linkName){
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(linkName).style.display = "block";
evt.currentTarget.className += " active";
}
</script>
好了,所以我通过检查元素的网页使用发现的无边框,底部,然后这个的图片向上箭头
如何在图片在活动时出现在选项卡上?