Way to Modify Submit Button Width in WpForms
https://wordpress.org/plugins/styler-...
Download and activate the above wordpress plugin to modify the complete theme of your WpForms. It uses Wp customizer so you get WYSIWYG experience. Styler for WpForms has collection of around 100 options to change the look without any CSS . You can alter font family, background image etc from built in options.