form_producto_admi.html

    <h2>Nuevo Producto</h2>
    <form action="" method="post" class="producto">
        <div class="row  mb-3 align-items-center">
            <div class="col-12 col-lg-3">
              <label for="name" class="col-form-label">Nombre</label>
            </div>
            <div class="col-12 col-lg-9">
              <input type="text" id="name" class="form-control" aria-describedby="passwordHelpInline">
            </div>
       </div>
       <div class="row mb-3  align-items-center">
            <div class="col-12 col-lg-3 ">
                <label for="description" class="col-form-label">Descripción</label>
            </div>
            <div class="col-12 col-lg-9">
                <textarea name="description" id="description" cols="30" rows="10" class="form-control" aria-describedby="passwordHelpInline"></textarea>
            </div>
       </div>
       <div class="row mb-3  align-items-center">
            <div class="col-12 col-lg-3">
                <label for="precio" class="col-form-label">Precio</label>
            </div>
            <div class="col-12 col-lg-3">
                <input type="number" name="precio" id="precio" class="form-control" aria-describedby="passwordHelpInline">
            </div>
            <div class="col-12 col-lg-3">
                <label for="precio" class="col-form-label">Marca</label>
            </div>
            <div class="col-lg-3" >
                <select class="form-select" aria-label="Default select example">
                    <option disabled selected>Seleccione una marca</option>
                    <option value="1">Marca 1</option>
                    <option value="2">Marca 2</option>
                    <option value="3">Marca 3</option>
                </select>
            </div>
        </div>
        <div class="row   align-items-center justify-content-center">
            <label class="custom-file-upload col-12 col-lg-8">
                <iput type="file" id="imagen"> Subir Imagen</input>
            </label>
        </div>
        <div class="row  align-items-center justify-content-center">
            <label class="custom-file-upload col-12 col-lg-8">
                <input type="submit" name="guardar" value="Guardar">  Guardar  </input>
            </label>
        </div>
    </form>