I apologize for the topic! I've found many similar topics and advises, however nothing help. I want to create dropdown <a> menu inside the navbar. The code is:
<head>
<link href="https://cdn.jsdelivr.net/npm/[email protected]/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-iYQeCzEYFbKjA/T2uDLTpkwGzCiq6soy8tYaI1GyVh/UjpbCx/TYkiZhlZB6 fzT" crossorigin="anonymous">
<script src="https://cdn.jsdelivr.net/npm/@popperjs/[email protected]/dist/umd/popper.min.js" integrity="sha384-oBqDVmMz9ATKxIep9tiCxS/Z9fNfEXiDAYTujMAeBAsjFuCZSmKbSSUnQlmh/jp3" crossorigin="anonymous"></script>
<script src="https://cdn.jsdelivr.net/npm/[email protected]/dist/js/bootstrap.min.js" integrity="sha384-7VPbUDkoPSGFnVtYi0QogXtr74QeVeeIs99Qfg5YCF TidwNdjvaKZX19NZ/e6oz" crossorigin="anonymous"></script>
<link href="css/navbar.css" rel="stylesheet" />
</head>
<body id="page-top">
<nav id="mainNav">
<div >
<a href="#page-top"><img src="" alt="..." /></a>
<ul >
<li >
<a
href="#about"
id="navbarDropdownMenuLink"
role="button"
data-bs-toogle="dropdown"
aria-expanded="false"
aria-haspopup="true"
>
About
</a>
<ul aria-labelledby="navbarDropdownMenuLink" >
<li>
<a href="#">One</a>
</li>
<li>
<a href="#">Two</a>
</li>
</ul>
</li>
</ul>
</div>
</nav>
</body>
CodePudding user response：
Change the "data-bs-toogle="dropdown" to "data-bs-toggle="dropdown". Check the spelling of toggle. Try this:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link href="https://cdn.jsdelivr.net/npm/[email protected]/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-iYQeCzEYFbKjA/T2uDLTpkwGzCiq6soy8tYaI1GyVh/UjpbCx/TYkiZhlZB6 fzT" crossorigin="anonymous">
<script src="https://cdn.jsdelivr.net/npm/@popperjs/[email protected]/dist/umd/popper.min.js" integrity="sha384-oBqDVmMz9ATKxIep9tiCxS/Z9fNfEXiDAYTujMAeBAsjFuCZSmKbSSUnQlmh/jp3" crossorigin="anonymous"></script>
<script src="https://cdn.jsdelivr.net/npm/[email protected]/dist/js/bootstrap.min.js" integrity="sha384-7VPbUDkoPSGFnVtYi0QogXtr74QeVeeIs99Qfg5YCF TidwNdjvaKZX19NZ/e6oz" crossorigin="anonymous"></script>
<link href="css/navbar.css" rel="stylesheet" />
</head>
<body id="page-top">
<nav id="mainNav">
<div >
<a href="#page-top"><img src="" alt="..." /></a>
<ul >
<li >
<a
href="#about"
id="navbarDropdownMenuLink"
role="button"
data-bs-toggle="dropdown"
aria-expanded="false"
aria-haspopup="true"
>
About
</a>
<ul aria-labelledby="navbarDropdownMenuLink" >
<li>
<a href="#">One</a>
</li>
<li>
<a href="#">Two</a>
</li>
</ul>
</li>
</ul>
</div>
</nav>
</body>
</html>