Restructure controls, Remove vertical padding from controls, Fix panel

sass/elements/other.sass

@@ -143,7 +143,8 @@
   height: 24px
   justify-content: center
   line-height: 16px
-  padding: 4px 10px
+  padding-left: 10px
+  padding-right: 10px
   vertical-align: top
   white-space: nowrap
   .delete
@@ -166,16 +167,19 @@
   &.is-small
     font-size: $size-small
     height: 20px
-    padding: 2px 8px
+    padding-left: 8px
+    padding-right: 8px
   &.is-medium
     font-size: $size-normal
     height: 32px
-    padding: 8px 14px
+    padding-left: 14px
+    padding-right: 14px
   &.is-large
     font-size: $size-5
     height: 40px
     line-height: 24px
-    padding: 8px 18px
+    padding-left: 18px
+    padding-right: 18px
     .delete
       margin-left: 4px
       margin-right: -8px