Fix #569

sass/elements/form.sass

@@ -71,7 +71,6 @@ $input-radius:              $radius !default
 
 .textarea
   display: block
-  line-height: 1.25
   max-height: 600px
   max-width: 100%
   min-height: 120px
@@ -86,6 +85,7 @@ $input-radius:              $radius !default
   display: inline-flex
   flex-wrap: wrap
   justify-content: flex-start
+  line-height: 1.5
   position: relative
   vertical-align: top
   input
@@ -226,6 +226,8 @@ $input-radius:              $radius !default
       display: flex
 
 .field-label
+  .label
+    font-size: inherit
   +mobile
     margin-bottom: 0.5rem
   +tablet
@@ -233,8 +235,18 @@ $input-radius:              $radius !default
     flex-grow: 1
     flex-shrink: 0
     margin-right: 1.5rem
-    padding-top: 0.375em
     text-align: right
+    &.is-small
+      font-size: $size-small
+      padding-top: 0.375em
+    &.is-normal
+      padding-top: 0.375em
+    &.is-medium
+      font-size: $size-medium
+      padding-top: 0.375em
+    &.is-large
+      font-size: $size-large
+      padding-top: 0.375em
 
 .field-body
   +tablet