Form drop shadow

Hi
I can see how to change the drop shadow for most features however how do i remove the inner form drop shadow?

When i enable form transparency i see a faint drop shadow. how do i remove this?

### Begin System Info ###

-- WordPress Configuration --

Site URL:                 https://www.onlysoftwarereviews.com
Home URL:                 https://www.onlysoftwarereviews.com
Multisite:                No
Version:                  5.8.1
Language:                 en_US
Table Prefix:             Length: 5
WP_DEBUG:                 Disabled
Memory Limit:             40M

-- LoginPress Configuration --

Plugin Version:           1.5.6
Expiration:           	  180 Minute
Login Order:              Username
Uninstallation:       	  off
Total Customized Fields:  21
Customization Detail:     Array
(
    [setting_logo_display] => 1
    [setting_background_color] => #ffc845
    [loginpress_display_bg] => 
    [custom_button_color] => #ffc845
    [button_border_color] => #ffffff
    [button_hover_color] => #ffc845
    [button_hover_border] => #ffffff
    [button_hover_text_color] => #ffffff
    [login_button_shadow] => 0
    [footer_display_text] => 
    [back_display_text] => 
    [loginpress_show_love] => 
    [custom_button_shadow] => #ffffff
    [button_text_color] => #000000
    [login_button_shadow_opacity] => 0
    [customize_form_radius] => 10
    [customize_form_shadow] => 0
    [customize_form_opacity] => 0
    [customize_form_height] => 291
    [login_button_radius] => 0
    [setting_form_display_bg] => 
)

-- Server Configuration --

Operating System:         Linux
PHP Version:              7.4.23
MySQL Version:            5.7.35
Server Software:          Apache

-- PHP Configuration --

Memory Limit:             768M
Post Max Size:            512M
Upload Max Filesize:      512M
Time Limit:               1000
Max Input Vars:           10000
Display Errors:           N/A

-- WordPress Active Theme --

Name:                     Rehub theme
URI:                      https://themeforest.net/item/rehub-directory-multi-vendor-shop-coupon-affiliate-theme/7646339
Author:                   Wpsoul
Version:                  16.8.2

-- WordPress Active Plugins --

Antispam Bee: v(2.10.0)
Content Egg: v(5.2.1)
Elementor: v(3.4.4)
Elementor Pro: v(3.4.1)
Envato Market: v(2.0.6)
iThemes Security: v(8.0.2)
Loginizer: v(1.6.7)
LoginPress - Customizing the WordPress Login: v(1.5.6)
One Click Demo Import: v(3.0.2)
REHub Framework: v(14.6)
RH Frontend Publishing Pro: v(4.2.5)
Under Construction: v(3.89)

-- WordPress Inactive Plugins --

### End System Info ###

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