diff --git a/src/App/Page/Zone.purs b/src/App/Page/Zone.purs
index 833fa93..8ba54a0 100644
--- a/src/App/Page/Zone.purs
+++ b/src/App/Page/Zone.purs
@@ -408,7 +408,7 @@ render state
               (updateForm Field_Domain)
               state._currentRR.name
               display_domain_side
-          , Bulma.box_input ("ttl" <> state._currentRR.rrtype) "TTL" "600"
+          , Bulma.box_input ("ttl" <> state._currentRR.rrtype) "TTL" "1800"
               (updateForm Field_TTL)
               (show state._currentRR.ttl)
           , case state._currentRR.rrtype of
@@ -442,7 +442,7 @@ render state
               (updateForm Field_Domain)
               state._currentRR.name
               display_domain_side
-          , Bulma.box_input ("ttlMX") "TTL" "600"
+          , Bulma.box_input ("ttlMX") "TTL" "1800"
               (updateForm Field_TTL)
               (show state._currentRR.ttl)
           , Bulma.box_input ("targetMX") "Target" "www"
@@ -460,7 +460,7 @@ render state
               (updateForm Field_Domain)
               state._currentRR.name
               display_domain_side
-          , Bulma.box_input ("ttlCAA") "TTL" "600"
+          , Bulma.box_input ("ttlCAA") "TTL" "1800"
               (updateForm Field_TTL)
               (show state._currentRR.ttl)
           , Bulma.hr
@@ -477,6 +477,9 @@ render state
         modal_content_srv =
           [ Bulma.div_content [] [Bulma.explanation Explanations.srv_introduction]
           , render_errors
+          , Bulma.box_input ("ttlSRV") "TTL" "1800"
+              (updateForm Field_TTL)
+              (show state._currentRR.ttl)
           , Bulma.box_input "domainSRV" "Service name" "service name"
               (updateForm Field_Domain)
               state._currentRR.name
@@ -488,12 +491,12 @@ render state
           , Bulma.box_input ("portSRV") "Port of the service" "5061"
               (updateForm Field_Port)
               (maybe "" show state._currentRR.port)
+          , Bulma.div_content [] [Bulma.explanation [Bulma.p "The priority field is a numeric value that indicates the preference of the server (lower values indicate higher priority)."]]
           , Bulma.box_input ("prioritySRV") "Priority" "10"
               (updateForm Field_Priority)
               (maybe "" show state._currentRR.priority)
-          , Bulma.box_input ("ttlSRV") "TTL" "600"
-              (updateForm Field_TTL)
-              (show state._currentRR.ttl)
+          -- Bulma.div_content [] [Bulma.explanation Explanations.spf_introduction], Bulma.p "Modifiers provide additional instructions, such as explanations for SPF failures or redirecting SPF checks to another domain."
+          , Bulma.div_content [] [Bulma.explanation [Bulma.p "The weight field is a relative weight used when multiple servers have the same priority, determining how often they should be used."]]
           , Bulma.box_input ("weightSRV") "Weight" "100"
               (updateForm Field_Weight)
               (maybe "" show state._currentRR.weight)
@@ -506,7 +509,7 @@ render state
               (updateForm Field_Domain)
               state._currentRR.name
               display_domain_side
-          , Bulma.box_input "ttlSPF" "TTL" "600"
+          , Bulma.box_input "ttlSPF" "TTL" "1800"
               (updateForm Field_TTL)
               (show state._currentRR.ttl)
           --, case state._currentRR.v of
@@ -515,7 +518,8 @@ render state
           , Bulma.hr
           , Bulma.box_with_tag C.has_background_info_light tag_mechanisms
             [ maybe (Bulma.p "You don't have any mechanism.") display_mechanisms state._currentRR.mechanisms
-            , Bulma.h3 "New mechanism"
+            , Bulma.hr
+            , Bulma.h4 "New mechanism"
             , Bulma.selection_field "idMechanismQ" "Policy" SPF_Mechanism_q qualifier_types state.spf_mechanism_q
             , Bulma.selection_field "idMechanismT" "Type"   SPF_Mechanism_t mechanism_types state.spf_mechanism_t
             , Bulma.box_input "valueNewMechanismSPF" "Value" ""
@@ -526,7 +530,8 @@ render state
           , Bulma.hr
           , Bulma.box_with_tag C.has_background_success_light tag_modifiers
             [ maybe (Bulma.p "You don't have any modifier.") display_modifiers state._currentRR.modifiers
-            , Bulma.h3 "New modifier"
+            , Bulma.hr
+            , Bulma.h4 "New modifier"
             , Bulma.selection_field "idModifierT" "Modifier" SPF_Modifier_t modifier_types state.spf_modifier_t
             , Bulma.box_input "valueNewModifierSPF" "Value" ""
                 SPF_Modifier_v
@@ -555,7 +560,7 @@ render state
               (updateForm Field_Domain)
               state._currentRR.name
               display_domain_side
-          , Bulma.box_input "ttlDKIM" "TTL" "600"
+          , Bulma.box_input "ttlDKIM" "TTL" "1800"
               (updateForm Field_TTL)
               (show state._currentRR.ttl)
           , Bulma.hr
@@ -580,7 +585,7 @@ render state
               (updateForm Field_Domain)
               state._currentRR.name
               display_domain_side
-          , Bulma.box_input "ttlDMARC" "TTL" "600" (updateForm Field_TTL) (show state._currentRR.ttl)
+          , Bulma.box_input "ttlDMARC" "TTL" "1800" (updateForm Field_TTL) (show state._currentRR.ttl)
 
           , Bulma.hr
           , Bulma.div_content [] [Bulma.explanation Explanations.dmarc_policy]
diff --git a/src/Bulma.purs b/src/Bulma.purs
index e800a36..424c726 100644
--- a/src/Bulma.purs
+++ b/src/Bulma.purs
@@ -36,6 +36,9 @@ h1 title = HH.h1 [ HP.classes (C.title) ] [ HH.text title ]
 h3 :: forall (w :: Type) (a :: Type). String -> HH.HTML w a
 h3 title = HH.h3 [ HP.classes (C.title <> C.is5) ] [ HH.text title ]
 
+h4 :: forall (w :: Type) (a :: Type). String -> HH.HTML w a
+h4 title = HH.h4 [ HP.classes (C.title <> C.is5) ] [ HH.text title ]
+
 zone_rr_title :: forall (w :: Type) (a :: Type). String -> HH.HTML w a
 zone_rr_title title
   = HH.h3 [ HP.classes (C.title <> C.is5 <> C.has_text_light <> C.has_background_dark) ]
@@ -819,6 +822,9 @@ btn_validation :: forall w i. HH.HTML w i
 btn_validation = btn_validation_ "Validate"
 
 -- | Box with tags.
+-- |```
+-- |box_with_tag C.has_background_danger_light some_tag [Bulma.p "Hello"]
+-- |```
 box_with_tag :: forall w action.
   Array HH.ClassName            -- css classes (like the color)
   -> HH.HTML w action           -- tag (title for the box)