fix(button): fixes button styles so that <a> and <button> examples look

identical

Fixes issue introduced in cc07e63

Author: Robert Messerle

src/components/button/button.scss

@@ -40,7 +40,9 @@ $icon-button-margin: rem(0.600) !default;
 
   outline: none;
   border: 0;
-  display: inline-table;
+  display: inline-flex;
+  align-items: center;
+  flex-direction: column;
   padding: $button-padding;
   margin: $button-margin;
   line-height: $button-line-height;