diff --git a/src/lib/components/Keyboard.css b/src/lib/components/Keyboard.css
index 9d8700e9..37d77493 100644
--- a/src/lib/components/Keyboard.css
+++ b/src/lib/components/Keyboard.css
@@ -37,7 +37,7 @@ body, html {
  * hg-theme-default theme
  */
 .simple-keyboard.hg-theme-default {
-  background-color: rgba(0,0,0,0.2);
+  background-color: rgba(0,0,0,0.1);
   padding: 5px;
   border-radius: 5px;
  }
@@ -45,12 +45,11 @@ body, html {
 .simple-keyboard.hg-theme-default .hg-button {
   box-shadow: 0px 0px 3px -1px rgba(0,0,0,0.3);
   height: 40px;
-  border: 1px solid rgba(0,0,0,0.25);
   border-radius: 5px;
   box-sizing: border-box;
   padding: 5px;
   background: white;
-  border-bottom: 1px solid gray;
+  border-bottom: 1px solid #b5b5b5;
  }
 
  .simple-keyboard.hg-theme-default .hg-button:active {