也许是因为您正在使用：使用 p-4 进行常规填充，然后使用 pe-5 进行特定填充
您的行周围没有所需的
.container.container-fluidhttps://getbootstrap.com/docs/5.3/layout/grid/#example
<head>
<link href="https://cdn.jsdelivr.net/npm/[email protected]/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-T3c6CoIi6uLrA9TneNEoa7RxnatzjcDSCmG1MXxSR1GAsXEV/Dwwykc2MPK8M2HN" crossorigin="anonymous">
</head>
<body>
<header class="container-fluid bg-info">
<div class="row text-white">
<div class="col-md-6 p-4 pe-5 ">
<h2 class="">Adhnan M Y</h2>
</div>
<div class="col-md-6">
</div>
</div>
</header>
</body>