Some more explanations on different buttons' actions.

src/App/Page/DomainList.purs

@@ -276,18 +276,18 @@ render { accepted_domains, my_domains, newDomainForm, askDomainTransferForm, del
       [ HH.td_ [ Bulma.btn domain.name (EnterDomain domain.name) ]
       , HH.td_ [ HH.text $ fromMaybe "" domain.share_key ]
       , if A.length domain.owners == 1
-        then HH.td_ [ Bulma.alert_btn "Unshare" (UnShareDomain domain.name) ]
+        then HH.td_ [ Bulma.alert_btn_abbr "Unshare the domain by removing the \"share\" token." "Unshare" (UnShareDomain domain.name) ]
         else HH.td_ [ Bulma.btn_ro (C.is_warning) "Cannot unshare it" ]
-      , HH.td_ [ Bulma.alert_btn "Delete" (DeleteDomainModal domain.name) ]
+      , HH.td_ [ Bulma.alert_btn_abbr "Delete the domain from your list of owned domains. In case you are the only owner, this will also remove all zone data and the domain won't be served anymore." "Delete" (DeleteDomainModal domain.name) ]
       ]
 
     owned_domain_row domain = HH.tr_
       [ HH.td_ [ Bulma.btn domain.name (EnterDomain domain.name) ]
       , case domain.transfer_key of
           Just key -> HH.td_ [ Bulma.p "Token key:", Bulma.p key ]
-          Nothing  -> HH.td_ [ Bulma.btn "Transfer" (TransferDomain domain.name) ]
+          Nothing  -> HH.td_ [ Bulma.btn_abbr "Generate a token to transfer the ownership of a domain." "Transfer" (TransferDomain domain.name) ]
-      , HH.td_ [ Bulma.btn "Share" (ShareDomain domain.name) ]
+      , HH.td_ [ Bulma.btn_abbr "Generate a token to share the ownership of a domain." "Share" (ShareDomain domain.name) ]
-      , HH.td_ [ Bulma.alert_btn "Delete" (DeleteDomainModal domain.name) ]
+      , HH.td_ [ Bulma.alert_btn_abbr "Delete the domain. This will remove all zone data and the domain won't be served anymore." "Delete" (DeleteDomainModal domain.name) ]
       ]
 
     render_add_domain_form = HH.form

src/Bulma.purs

@@ -379,8 +379,27 @@ textarea_ classes placeholder value action
 textarea :: forall w i. String ->  String -> (String -> i) -> HH.HTML w i
 textarea placeholder value action = textarea_ [] placeholder value action
 
+btn_abbr_ :: forall w action.
+     Array HH.ClassName -- button classes
+  -> Array HH.ClassName -- inner div classes
+  -> String
+  -> String
+  -> action
+  -> HH.HTML w action
+btn_abbr_ btnclasses divclasses explanation_ title action
+  = HH.button
+      [ HE.onClick \_ -> action
+      , HP.classes $ C.button <> btnclasses
+      ] [ HH.abbr [ HP.title explanation_ ] [ HH.div [ HP.classes divclasses ] [ HH.text title ] ] ]
+
+btn_abbr :: forall w action. String -> String -> action -> HH.HTML w action
+btn_abbr explanation_ title action = btn_abbr_ [] [] explanation_ title action
+
+alert_btn_abbr :: forall w action. String -> String -> action -> HH.HTML w action
+alert_btn_abbr explanation_ title action = btn_abbr_ C.is_danger [] explanation_ title action
+
 btn_modify :: forall w i. i -> HH.HTML w i
-btn_modify action = btn_ (C.is_small <> C.is_info) "⚒" action
+btn_modify action = btn_abbr_ (C.is_small <> C.is_info) (C.is_size 4) "Edit" "⚒" action
 
 btn_save :: forall w i. i -> HH.HTML w i
 btn_save action = btn_ C.is_info "Save" action
@@ -389,7 +408,7 @@ btn_add :: forall w i. i -> HH.HTML w i
 btn_add action = btn_ C.is_info "Add" action
 
 btn_delete :: forall w i. i -> HH.HTML w i
-btn_delete action = btn_ (C.is_small <> C.is_danger) "✖" action
+btn_delete action = btn_abbr_ (C.is_small <> C.is_danger) (C.is_size 4) "Delete" "✖" action
 
 btn_modify_ro :: forall w i. HH.HTML w i
 btn_modify_ro = btn_ro (C.is_small <> C.is_warning) "modify"