How can I center this content?

This is coming from a Bootstrap template that apparently allows you to center some content, but it's not working for me and I don't know why.

Here's the way the page looks currently:


It doesn't look bad, but I want to center the content so it looks more like this:


Here's the code that I've been wrestling with:

<div class="container">
			<div class="row justify-content-center">
				<div class="col-md-8 satellite_row">
				<h5>NOMAS<sup>&reg;</sup> International Admin Dashboard</h5>
				To login to the NOMAS<sup>&reg;</sup> International Admin Suite, enter your email and password below, then click on "login."
				<br><br>
				if you run into any issues or questions, contact Bruce Gust at <a href="mailto:bruce@brucegust.com">bruce@brucegust.com</a>.
				<br><br>
				Thanks!
				<br><br>
					<div class="card">
						<!--<div class="card-header">{{ __('Login') }}<br><br></div>-->
						
						<div class="card-body">
							<form method="POST" action="{{ route('login') }}">
								@csrf

								<div class="form-group row">
									<label for="email" class="col-md-4 col-form-label text-md-right">{{ __('E-Mail Address') }}</label>

									<div class="col-md-6">
										<input id="email" type="email" class="form-control @error('email') is-invalid @enderror" name="email" value="{{ old('email') }}" required autocomplete="email" autofocus>

										@error('email')
											<span class="invalid-feedback" role="alert">
												<strong>{{ $message }}</strong>
											</span>
										@enderror
									</div>
								</div>

								<div class="form-group row">
									<label for="password" class="col-md-4 col-form-label text-md-right">{{ __('Password') }}</label>

									<div class="col-md-6">
										<input id="password" type="password" class="form-control @error('password') is-invalid @enderror" name="password" required autocomplete="current-password">

										@error('password')
											<span class="invalid-feedback" role="alert">
												<strong>{{ $message }}</strong>
											</span>
										@enderror
									</div>
								</div>

								<div class="form-group row">
									<div class="col-md-6 offset-md-4">
										<div class="form-check">
											<input class="form-check-input" type="checkbox" name="remember" id="remember" {{ old('remember') ? 'checked' : '' }}>

											<label class="form-check-label" for="remember">
												{{ __('Remember Me') }}
											</label>
										</div>
									</div>
								</div>

								<div class="form-group row mb-0">
									<div class="col-md-8 offset-md-4">
										<button type="submit" class="btn btn-primary">
											{{ __('Login') }}
										</button>

										@if (Route::has('password.request'))
											<a class="btn btn-link" href="{{ route('password.request') }}">
												{{ __('Forgot Your Password?') }}
											</a>
										@endif
									</div>
								</div>
							</form>
						</div>
					</div>
				</div>
			</div>
		</div>

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The "snag" seems to be happening at link #7. If I understand what SHOULD be happening, "row justify-content-center" should take the content encased beginning on line #8 and center it, but it doesn't.

What am I missing?