diff --git a/index.html b/index.html
index 4366e2c..b005dc4 100644
--- a/index.html
+++ b/index.html
@@ -12,6 +12,10 @@
     .product-image {text-align: center;}
     .product-image > img {margin: auto; max-width: 100%; display: flex; background: #eee url("./images/photo.png") no-repeat center; height: 200px;}
     .link-image > a {height: 50px; font-size: 12px;}
+    .link-image > a[href$="CP.jpg"] {background: #C5E1A5;}
+    .link-image > a[href$="PD.jpg"] {background: #80CBC4;}
+    .link-image > a[href$="PZ.jpg"] {background: #C5CAE9;}
+    .link-image > a[href$="TH.jpg"] {background: #CE93D8;}
     .link-image > a > img {max-height: 100%;}
   </style>
 </head>