diff --git a/css/style.css b/css/style.css
index a441e4a..cb1672c 100644
--- a/css/style.css
+++ b/css/style.css
@@ -47,16 +47,16 @@ div {
     background-color: #ff0000;
     text-align: right;
     margin-left: 50px;
-    border-left: 5px;
-    border-bottom: 2px;
+    border-left-width: 5px;
+    border-bottom-width: 2px;
 }
 
 .blue {
     background-color: #0000ff;
     text-align: left;
     margin-right: 50px;
-    border-right: 5px;
-    border-top: 2px;
+    border-right-width: 5px;
+    border-top-width: 2px;
     color: #c4c4c4;
 }
 
@@ -68,8 +68,8 @@ div {
     background-color: #ffff00;
     text-align: right;
     margin-left: 50px;
-    border-bottom: 2px;
-    border-left: 5px;
+    border-bottom-width: 2px;
+    border-left-width: 5px;
 }
 
 .yellow p {
@@ -80,8 +80,8 @@ div {
     background-color: #008500;
     text-align: left;
     margin-right: 50px;
-    border-right: 5px;
-    border-top: 2px;
+    border-right-width: 5px;
+    border-top-width: 2px;
 }
 
 footer {