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1. 鍒涘缓涓€涓狧TML鍒楄〃锛屽叾涓寘鍚笅鎷夎彍鍗曠殑閫夐」銆?/p>

2. 浣跨敤CSS灏嗚鍒楄〃闅愯棌璧锋潵锛屽苟涓轰笅鎷夎彍鍗曠殑瑙﹀彂鍣紙濡傛寜閽垨閾炬帴锛夊簲鐢ㄦ牱寮忋€?/p>

3. 浣跨敤CSS浼被锛堝:hover锛夋潵鍦ㄨЕ鍙戝櫒涓婅缃紶鏍囨偓鍋滄椂鐨勬牱寮忥紝骞跺皢涓嬫媺鑿滃崟鍒楄〃鏄剧ず鍑烘潵銆?/p>

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浠ヤ笅鏄竴涓畝鍗曠殑CSS涓嬫媺鑿滃崟鐨勭ず渚嬩唬鐮侊細

HTML浠ｇ爜锛?/p>

<div class="dropdown">
<button class="dropbtn">涓嬫媺鑿滃崟</button>
<div class="dropdown-content">
<a href="#">閫夐」1</a>
<a href="#">閫夐」2</a>
<a href="#">閫夐」3</a>
</div>
</div>

CSS浠ｇ爜锛?/p>

/* 闅愯棌涓嬫媺鑿滃崟 */
.dropdown-content {
display: none;
}
/* 璁剧疆瑙﹀彂鍣ㄦ牱寮?*/
.dropbtn {
background-color: #4CAF50;
color: white;
padding: 12px;
font-size: 16px;
border: none;
}
/* 榧犳爣鎮仠鏃舵樉绀轰笅鎷夎彍鍗?*/
.dropdown:hover .dropdown-content {
display: block;
}
/* 璁剧疆涓嬫媺鑿滃崟鏍峰紡 */
.dropdown-content {
position: absolute;
background-color: #f9f9f9;
min-width: 160px;
z-index: 1;
}