導航欄（折疊）按鈕不起作用 Bootstrap 5.1.3
[英]navbar (Collapse) button doesn't work Bootstrap 5.1.3
問題描述
導航欄（折疊）不起作用 Bootstrap 5
narbar（折疊）按鈕不在我的電腦上，該按鈕仍然顯示，但當我單擊該按鈕時它沒有顯示導航欄。 但是，當我在 codeply2 上發布代碼（沒有指向 bootsrap5 和源的鏈接）時，按鈕工作正常。 我認為問題出在鏈接和來源上，但我不知道如何解決。
<head> <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.1.3/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-1BmE4kWBq78iYhFldvKuhfTAU6auU8tT94WrHftjDbrCEXSU1oBoqyl2QvZ6jIW3" crossorigin="anonymous"> <script src="https://code.jquery.com/jquery-3.3.1.slim.min.js" integrity="sha384-q8i/X+965DzO0rT7abK41JStQIAqVgRVzpbzo5smXKp4YfRvH+8abtTE1Pi6jizo" crossorigin="anonymous"></script> <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.7/umd/popper.min.js" integrity="sha384-UO2eT0CpHqdSJQ6hJty5KVphtPhzWj9WO1clHTMGa3JDZwrnQq4sF86dIHNDz0W1" crossorigin="anonymous"></script> <script src="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/js/bootstrap.min.js" integrity="sha384-JjSmVgyd0p3pXB1rRibZUAYoIIy6OrQ6VrjIEaFf/nJGzIxFDsf4x0xIM+B07jRM" crossorigin="anonymous"></script> </head> <body> <nav class="navbar navbar-expand-lg navbar-dark bg-primary "> <a class="navbar-brand ps-2" href="#">ICat</a> <button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbarTogglerDemo01" aria-controls="navbarTogglerDemo01" aria-expanded="false" aria-label="Toggle navigation"> <span class="navbar-toggler-icon"></span> </button> <div class="collapse navbar-collapse" id="navbarTogglerDemo01"> <ul class="navbar-nav ms-auto pe-5"> <li class="nav-item"><a class="nav-link" href="">Home</a></li> <li class="nav-item"><a class="nav-link" href="">Contact</a></li> <li class="nav-item"><a class="nav-link" href="">Fan Page</a></li> <li class="nav-item"><a class="nav-link" href="">Product</a></li> </ul> </div> </nav> </body>
2 個解決方案
解決方案1
2 已采納 2021-10-25 06:51:17
我更新了你的代碼，現在它可以工作了。 您的 bootstrap 5 CSS 參考是正確的，但 JS 參考是錯誤的，您必須將此 js bootstrap cnd 用於 JS <script src="https://cdnjs.cloudflare.com/ajax/libs/bootstrap/5.1.3/js/bootstrap.min.js" integrity="sha512-OvBgP9A2JBgiRad/mM36mkzXSXaJE9BEIENnVEmeZdITvwT09xnxLtT4twkCa8m/loMbPHsvPl0T8lRGVBwjlQ==" crossorigin="anonymous" referrerpolicy="no-referrer"></script>
<head> <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.1.3/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-1BmE4kWBq78iYhFldvKuhfTAU6auU8tT94WrHftjDbrCEXSU1oBoqyl2QvZ6jIW3" crossorigin="anonymous"> <script src="https://code.jquery.com/jquery-3.3.1.slim.min.js" integrity="sha384-q8i/X+965DzO0rT7abK41JStQIAqVgRVzpbzo5smXKp4YfRvH+8abtTE1Pi6jizo" crossorigin="anonymous"></script> <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.7/umd/popper.min.js" integrity="sha384-UO2eT0CpHqdSJQ6hJty5KVphtPhzWj9WO1clHTMGa3JDZwrnQq4sF86dIHNDz0W1" crossorigin="anonymous"></script> <script src="https://cdnjs.cloudflare.com/ajax/libs/bootstrap/5.1.3/js/bootstrap.min.js" integrity="sha512-OvBgP9A2JBgiRad/mM36mkzXSXaJE9BEIENnVEmeZdITvwT09xnxLtT4twkCa8m/loMbPHsvPl0T8lRGVBwjlQ==" crossorigin="anonymous" referrerpolicy="no-referrer"></script> </head> <body> <nav class="navbar navbar-expand-lg navbar-dark bg-primary "> <a class="navbar-brand ps-2" href="#">ICat</a> <button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbarTogglerDemo01" aria-controls="navbarTogglerDemo01" aria-expanded="false" aria-label="Toggle navigation"> <span class="navbar-toggler-icon"></span> </button> <div class="collapse navbar-collapse" id="navbarTogglerDemo01"> <ul class="navbar-nav ms-auto pe-5"> <li class="nav-item"><a class="nav-link" href="">Home</a></li> <li class="nav-item"><a class="nav-link" href="">Contact</a></li> <li class="nav-item"><a class="nav-link" href="">Fan Page</a></li> <li class="nav-item"><a class="nav-link" href="">Product</a></li> </ul> </div> </nav> </body>
解決方案2
1 2021-10-25 06:52:26
<!doctype html> <html lang="en"> <head> <!-- Required meta tags --> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1"> <!-- Bootstrap CSS --> <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.1.3/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-1BmE4kWBq78iYhFldvKuhfTAU6auU8tT94WrHftjDbrCEXSU1oBoqyl2QvZ6jIW3" crossorigin="anonymous"> <title>Hello, world!</title> </head> <body> <nav class="navbar navbar-expand-lg navbar-dark bg-primary "> <a class="navbar-brand ps-2" href="#">ICat</a> <button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbarTogglerDemo01" aria-controls="navbarTogglerDemo01" aria-expanded="false" aria-label="Toggle navigation"> <span class="navbar-toggler-icon"></span> </button> <div class="collapse navbar-collapse" id="navbarTogglerDemo01"> <ul class="navbar-nav ms-auto pe-5"> <li class="nav-item"><a class="nav-link" href="">Home</a></li> <li class="nav-item"><a class="nav-link" href="">Contact</a></li> <li class="nav-item"><a class="nav-link" href="">Fan Page</a></li> <li class="nav-item"><a class="nav-link" href="">Product</a></li> </ul> </div> </nav> <!-- Option 1: Bootstrap Bundle with Popper --> <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.1.3/dist/js/bootstrap.bundle.min.js" integrity="sha384-ka7Sk0Gln4gmtz2MlQnikT1wXgYsOg+OMhuP+IlRH9sENBO0LRn5q+8nbTov4+1p" crossorigin="anonymous"></script> </body> </html>
將腳本標簽始終放在 body 標簽的底部。
Bootstrap崩潰導航欄可在jsfiddle上使用，在實際網站上不可用
[英]Bootstrap collapse navbar works on jsfiddle, doesn't work on actual website
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