我正在爲我的網頁創建一個「可切換標籤」導航欄。我已經想出瞭如何通過遵循w3schools教程創建可切換選項卡,但我並不想弄清楚如何修改其外觀,以便它具有指向活動選項卡的向上箭頭,如下圖所示。有誰知道一種方法來實現這一目標? 在活動的可切換標籤上添加圖像HTML/CSS
這裏是我的標籤代碼:
<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,所以我通過檢查元素的網頁使用發現的無邊框,底部,然後這個的圖片向上箭頭
如何在圖片在活動時出現在選項卡上?