Fix #1189

sass/elements/form.sass

@@ -70,6 +70,8 @@ $help-size: $size-small !default
   width: 100%
   &[type="search"]
     border-radius: 290486px
+  &[readonly]
+    box-shadow: none
   // Colors
   @each $name, $pair in $colors
     $color: nth($pair, 1)
@@ -95,6 +97,14 @@ $help-size: $size-small !default
     display: inline
     width: auto
 
+.input
+  &.is-static
+    background-color: transparent
+    border-color: transparent
+    box-shadow: none
+    padding-left: 0
+    padding-right: 0
+
 .textarea
   display: block
   max-width: 100%