Merge pull request adobe#1 from SAPlayer/scrollbars

Better behaviour of the win scrollbars: Hover-effect, not running into ...

Author: Thomas Erbe

src/styles/brackets_scrollbars.less

@@ -100,11 +100,31 @@
 
 .platform-win .content {
     ::-webkit-scrollbar {
-        background: #f0f0f0;
         width: 15px;
+        height: 15px;
+    }
+    ::-webkit-scrollbar-track {
+        background: #f0f0f0;
     }
     ::-webkit-scrollbar-thumb {
         background: #cdcdcd;
         width: 15px;
+        border: 1px solid #f0f0f0;
+    }
+    :hover::-webkit-scrollbar-thumb,
+    :focus::-webkit-scrollbar-thumb {
+        background: #a6a6a6;
     }
-}
+    :active::-webkit-scrollbar-thumb {
+        background: #606060;
+    }
+    ::-webkit-scrollbar-track:vertical { //:corner-present
+        margin: 0 0 15px 0;
+    }
+    ::-webkit-scrollbar-track:horizontal { //:corner-present
+        margin: 0 15px 0 0;
+    }
+    ::-webkit-scrollbar-corner {
+        background: #ffffff;
+    }
+}