尝试使用Bootstrap的实用程序类
因此，将此添加到您的主刀片布局的头部

<link href="https://stackpath.bootstrapcdn.com/bootstrap/4.5.2/css/bootstrap.min.css" rel="stylesheet">

字符串
你的代码应该看起来像这样：

@extends('app')
@section('title', __('home.welcome.title'))
@section('content')
  <div class="form d-flex justify-content-center align-items-center" style="height: 100vh;">
    <div class="card">
      <div class="card-body">
        <h1 class="text-center">@lang('common.login')</h1>
        @if(Auth::check())
          {{-- Itera sugli utenti solo se l'utente è autenticato --}}
          @foreach($users as $user)
            <!-- Codice per visualizzare gli utenti autenticati -->
          @endforeach
        @else
          <form method="POST" action="{{ route('login') }}">
            <div class="form-group">
              <label for="email">@lang('common.email')</label>
              <input type="email" name="email" id="email" class="form-control" required>
            </div>
            <div class="form-group">
              <label for="password">@lang('Password')</label>
              <input type="password" name="password" id="password" class="form-control" required>
            </div>
            <button type="submit" class="btn btn-primary btn-block">@lang('common.login')</button>
          </form>
        @endif
      </div>
    </div>
  </div>
@endsection

型

你可以使用flexbox将所有内容居中。只需将表单 Package 在一个容器中：
把这个css添加到你的stylsheet中：

.form-wrapper {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh; /* Optional: Set a minimum height for centering vertically */
}

/* Add any additional styling for your form as needed */
.form {
  /* Your existing form styles */
}

字符串
下面是使用flexbox Package 器修改后的刀片模板代码：

@extends('app')
@section('title', __('home.welcome.title'))
@section('content')
<div class="form-wrapper">
  <div class="form">
    <h1>@lang('common.login')</h1>
    @if(Auth::check())
    {{-- Itera sugli utenti solo se l'utente è autenticato --}}
    @foreach($users as $user)
    <!-- Codice per visualizzare gli utenti autenticati -->
    @endforeach
    @else
    <div class="card">
      <div class="card-body">
        <form method="POST" action="{{ route('login') }}">
           <div class="form-group" style="max-width: 100%;">>
            <label for="email">@lang('common.email')</label>
            <input type="email" name="email" id="email" class="form-control" required>
          </div>
          <div class="form-group">
            <label for="password">@lang('Password')</label>
            <input type="password" name="password" id="password" class="form-control" required>
          </div>
          <button type="submit" class="btn btn-primary btn-block">@lang('common.login')</button>
        </form>
      </div>
    </div>
    @endif
  </div>
</div>
</div>
@endsection

型

我通过下载 Bootstrap 文件并在其中创建一个cardform来解决它，谢谢你的答案