diff --git a/src/App/Page/Authentication.purs b/src/App/Page/Authentication.purs
index 29195d4..04d5b30 100644
--- a/src/App/Page/Authentication.purs
+++ b/src/App/Page/Authentication.purs
@@ -230,12 +230,8 @@ render { wsUp, current_tab, authenticationForm, passwordRecoveryForm, newPasswor
           (HandleAuthenticationInput <<< AUTH_INP_pass)    -- action
           authenticationForm.pass                          -- value
           should_be_disabled                               -- condition
-      , HH.button
-         [ HP.style "padding: 0.5rem 1.25rem;"
-         , HP.type_ HP.ButtonSubmit
-         , (if wsUp then (HP.enabled true) else (HP.disabled true))
-         ]
-         [ HH.text "Send Message to Server" ]
+      , Bulma.btn_validation
+
       ]
 
     render_password_recovery_form = HH.form
@@ -248,12 +244,7 @@ render { wsUp, current_tab, authenticationForm, passwordRecoveryForm, newPasswor
           (HandlePasswordRecovery <<< PASSR_INP_email)  -- action
           passwordRecoveryForm.email                       -- value
           should_be_disabled                               -- condition
-      , HH.button
-         [ HP.style "padding: 0.5rem 1.25rem;"
-         , HP.type_ HP.ButtonSubmit
-         , (if wsUp then (HP.enabled true) else (HP.disabled true))
-         ]
-         [ HH.text "Send Message to Server" ]
+      , Bulma.btn_validation
       ]
 
     render_new_password_form = HH.form
@@ -274,12 +265,7 @@ render { wsUp, current_tab, authenticationForm, passwordRecoveryForm, newPasswor
           (HandleNewPassword <<< NEWPASS_INP_confirmation)
           newPasswordForm.confirmation
           should_be_disabled
-      , HH.button
-         [ HP.style "padding: 0.5rem 1.25rem;"
-         , HP.type_ HP.ButtonSubmit
-         , (if wsUp then (HP.enabled true) else (HP.disabled true))
-         ]
-         [ HH.text "Send Message to Server" ]
+      , Bulma.btn_validation
       ]
 
 
diff --git a/src/App/Page/DomainList.purs b/src/App/Page/DomainList.purs
index 4c588ef..23a08bf 100644
--- a/src/App/Page/DomainList.purs
+++ b/src/App/Page/DomainList.purs
@@ -23,7 +23,6 @@ import Halogen as H
 import Halogen.HTML as HH
 import Halogen.HTML.Events as HE
 import Halogen.HTML.Events as HHE
-import Halogen.HTML.Properties as HP
 import Web.Event.Event as Event
 import Web.Event.Event (Event)
 import Bulma as Bulma
@@ -32,7 +31,6 @@ import App.DisplayErrors (error_to_paragraph_label)
 
 import App.Validation.Label as Validation
 
-import CSSClasses as C
 import App.Type.LogMessage
 import App.Message.DNSManagerDaemon as DNSManager
 
@@ -164,7 +162,7 @@ render { accepted_domains, my_domains, newDomainForm, wsUp, active_modal }
           false -> Bulma.p "You are disconnected."
           true  -> case active_modal of
             Nothing -> Bulma.columns_
-              [ Bulma.column_ [ Bulma.h3 "Add a domain!", render_add_domain_form]
+              [ Bulma.column_ [ Bulma.h3 "New domain", render_add_domain_form]
               , Bulma.column_ [ Bulma.h3 "My domains"
                               , HH.ul_ $ map (\domain -> HH.li_ (domain_buttons domain)) my_domains
                               ]
@@ -194,12 +192,8 @@ render { accepted_domains, my_domains, newDomainForm, wsUp, active_modal }
           (HandleNewDomainInput <<< INP_newdomain)
           newDomainForm.new_domain
           [ HHE.onSelectedIndexChange domain_choice ]
-          accepted_domains
-      , HH.button
-          [ HP.type_ HP.ButtonSubmit
-          , HP.classes C.button
-          ]
-          [ HH.text "add a new domain!" ]
+          (map (\v -> "." <> v) accepted_domains)
+      , Bulma.btn_validation_ "add a new domain"
       , if A.length newDomainForm._errors > 0
         then HH.div_ $ map error_to_paragraph_label newDomainForm._errors
         else HH.div_ [ ]
diff --git a/src/App/Page/MailValidation.purs b/src/App/Page/MailValidation.purs
index 1346aee..49ac959 100644
--- a/src/App/Page/MailValidation.purs
+++ b/src/App/Page/MailValidation.purs
@@ -110,14 +110,7 @@ render { wsUp, mailValidationForm }
           (HandleValidationInput <<< VALIDATION_INP_token)  -- action
           mailValidationForm.token                          -- value
           should_be_disabled                                -- condition
-      , HH.div_
-          [ HH.button
-              [ HP.style "padding: 0.5rem 1.25rem;"
-              , HP.type_ HP.ButtonSubmit
-              , (if wsUp then (HP.enabled true) else (HP.disabled true))
-              ]
-              [ HH.text "Send Message to Server" ]
-          ]
+      , Bulma.btn_validation
       ]
 
 handleAction :: forall m. MonadAff m => Action -> H.HalogenM State Action () Output m Unit
diff --git a/src/App/Page/Registration.purs b/src/App/Page/Registration.purs
index 3923eb7..dbc913d 100644
--- a/src/App/Page/Registration.purs
+++ b/src/App/Page/Registration.purs
@@ -117,14 +117,7 @@ render { wsUp, registrationForm }
           (HandleRegisterInput <<< REG_INP_pass)       -- action
           registrationForm.pass                        -- value
           should_be_disabled                           -- condition
-      , HH.div_
-          [ HH.button
-              [ HP.style "padding: 0.5rem 1.25rem;"
-              , HP.type_ HP.ButtonSubmit
-              , (if wsUp then (HP.enabled true) else (HP.disabled true))
-              ]
-              [ HH.text "Send Message to Server" ]
-          ]
+      , Bulma.btn_validation
       ]
 
 handleAction :: forall m. MonadAff m => Action -> H.HalogenM State Action () Output m Unit
diff --git a/src/Bulma.purs b/src/Bulma.purs
index 84fc9e2..536121a 100644
--- a/src/Bulma.purs
+++ b/src/Bulma.purs
@@ -522,3 +522,14 @@ notification_primary value deleteaction = notification C.is_primary value delete
 
 notification_danger :: forall w i. String -> i -> HH.HTML w i
 notification_danger value deleteaction = notification C.is_danger value deleteaction
+
+btn_validation_ :: forall w i. String -> HH.HTML w i
+btn_validation_ str = HH.button
+  -- [ HP.style "padding: 0.5rem 1.25rem;"
+  [ HP.type_ HP.ButtonSubmit
+  , HP.classes $ C.button <> C.is_primary
+  ]
+  [ HH.text str ]
+
+btn_validation :: forall w i. HH.HTML w i
+btn_validation = btn_validation_ "Validate"