表单控件： 、、</i><strong> </strong>是用于一般外观的标签，如输入字段、选择项和文本区域。</p> <p><strong>注意：</strong>为了使<strong> </strong>用户<strong> </strong>界面更像样，根据需要<i>使用填充、边距等属性。</i></p> <p><strong>例子：</strong></p> <div class="noIdeBtnDiv"> <div> <h5 class="code">HTML</h5> <div class="hcb_wrap"> <pre class="prism line-numbers lang-html" data-lang="HTML"><code class="replace"><!DOCTYPE html> <html> <head> <!-- CSS only --> <link rel="stylesheet" href= "https://cdn.jsdelivr.net/npm/bootstrap@5.0.0-beta1/dist/css/bootstrap.min.css"> </head> <body class="container-sm mt-5"> <form> <h2 class="text-center"> Display Form Controls </h2> <div class="form-group"> <label>Email address</label> <input type="email" class="form-control" placeholder="geeks@example.com"> </div> <div class="form-group mt-2"> <label>Example select</label> <select class="form-control"> <option>1</option> <option>2</option> <option>3</option> <option>4</option> <option>5</option> </select> </div> <div class="form-group mt-2"> <label>Example textarea</label> <textarea class="form-control">