diff --git a/src/button/Button.module.css b/src/button/Button.module.css
index 691e20f..193395c 100644
--- a/src/button/Button.module.css
+++ b/src/button/Button.module.css
@@ -29,6 +29,7 @@ limitations under the License.
   border: none;
   cursor: pointer;
   text-decoration: none;
+  box-sizing: border-box;
 }
 
 .secondary,