fix(global-modules): prevent labels from hiding tooltips

– Remove overflow:hidden from label template as it obscured tooltips
applied to label’s children
– Style buttons correctly if they include an input element

public/css/global-modules.styl

@@ -62,7 +62,7 @@ $hrpg-button-master
         background-color: #eee !important
 $hrpg-button
   @extend $hrpg-button-master
-  > a, > button
+  > a, > button, > input
     border: 1px solid #ccc !important
     border-radius: 0.382em !important
 $hrpg-button-call-to-action
@@ -132,7 +132,6 @@ $hrpg-label
   padding: 0.382em 0.618em
   border: 1px solid #fff
   outline: 1px solid #999
-  overflow: hidden
   background-color: #999
   font-size: 0.8em
   line-height: 1