hostcwb.com.br playground - Formulário sem borda

<div class="container mt-3 pt-3">
    <div class="row">
      <div class="col-12">
        <div class="card p-3 bg-form">
          <form class="row g-3">
            <div class="col-12">
              <h1 class="text-center fw-bolder text-white mt-3">Form bootstrap 5 - Floating labels</h1>
              <hr>
            </div>
            <div class="col-12">
              <div class="p-3  mb-3 text-white fw-bolder fs-3  border-5 border-start">
                Cadastre-se
              </div>
            </div>
            <div class="col-12">
              <div class="form-floating">
                <input type="text" autocomplete="off" class="form-control bg-light " id="inputName" placeholder="Name">
                <label for="inputName">Name</label>
              </div>
            </div>
            <div class="col-12 col-md-6">
              <div class="form-floating">
                <input type="email" class="form-control bg-light " id="inputEmail4" placeholder="Informe seu e-mail">
                <label for="inputEmail4">Email address</label>
              </div>
            </div>
            <div class="col-md-6">
              <div class="form-floating">
                <input type="password" class="form-control bg-light border-0 " id="inputPassword4" placeholder="Informe uma senha segura">
                <label for="inputPassword4" class="form-label">Password</label>
              </div>
            </div>
            <div class="col-12">
              <div class="form-floating">
                <input type="text" class="form-control  bg-light " id="inputAddress" placeholder="1234 Main St">
                <label for="inputAddress" class="form-label">Address</label>
              </div>
            </div>
            <div class="col-md-6">
              <div class="form-floating">
                <input type="text" class="form-control bg-light " id="inputCity" placeholder="Cidade">
                <label for="inputCity" class="form-label">City</label>
              </div>
            </div>
            <div class="col-md-4">
              <div class="form-floating">
                <select id="inputState" class="form-select bg-light">
                  <option selected>Choose...</option>
                  <option>...</option>
                </select>
                <label for="inputState" class="form-label">State</label>
              </div>
            </div>
            <div class="col-md-2">
              <div class="form-floating">
                <input type="text" class="form-control bg-light" id="inputZip" placeholder="Cep">
                <label for="inputZip" class="form-label">CEP</label>
              </div>
            </div>
            <div class="col-12">
              <div class="form-floating">
                <textarea class="form-control" placeholder="Leave a comment here" id="floatingTextarea" style="height:100px"></textarea>
                <label for="floatingTextarea">Comments</label>
              </div>
            </div>
            <div class="col-12">
              <div class="form-check">
                <input class="form-check-input" type="checkbox" id="gridCheck">
                <label class="form-check-label shadow-sm text-white" for="gridCheck">
                  Concordo com os termos.
                </label>
              </div>
            </div>
            <div class="col-12 text-end">
              <button type="submit" class="btn  bg-button-submit w-100 bg-gradient p-3 text-center mb-2 text-white fw-bolder fs-3">Salvar</button>
              <a href="#" class="text-primary shadow-sm">Precisa de ajuda? Clique aqui</a>
            </div>
          </form>
        </div>
      </div>
    </div>
  </div>