Conatct Form 7 Popup message after submit form to setup much of way you can do that via custom code as well one plugin also available for it Popup message Contact form 7 . that provide much of feature available for popup message plugin contact form 7 success message modal . in that plugin used sweetalert js.
This also know Contact Form 7 Response Message Popup plugin for wordpress
Create Popup – Setup Popup for success and field Message
Pre-Define Template – Using Much of Pre-define template in popup
Customize Message – Popup Message Can be Customize Which you want that can be place
Customize Background color and image – You can be customize background color and background image
Customize font color – Its support Select, Radio, Checkbox, Input box, Range slider for calculation
Customize Button text and Background color – you can be customize color text and button for both
Customize Duration Time – In this you can customize how much time after hide popup that
Customize Background gradient colors – You can be use Gradient Color
Mobile Friendly – Popup is Fully Mobile Friendly
Compatible Browser – It support Much of web Browser
After Click on contact form 7 popup on button click its make to open popup to make mobile friendly . Close popup after send message in Contact Form 7 to there is time limit to setup popup close after some seconds
We can display popup after submit CF7 form so user can be make elegant look in website. Contact Form 7 Success/Error Response Output to customize by message which message you want to add that can be use.
Normally days Contact form 7 most using in wordpress site and much secure for us.