diff --git a/src/css/custom.css b/src/css/custom.css
index 39ce6bfb6..c2e70212c 100644
--- a/src/css/custom.css
+++ b/src/css/custom.css
@@ -24,13 +24,6 @@
     --ifm-color-primary-lighter: #88d7fb;
     --ifm-color-primary-lightest: #b9e7fd;
     --doc-sidebar-width: 240px;
-    filter:grayscale(100%);
-    -webkit-filter:grayscale(100%);
-    -moz-filter:grayscale(100%);
-    -ms-filter:grayscale(100%);
-    -o-filter:grayscale(100%);
-   filter:progid:DXImageTransform.Microsoft.BasicImage(grayscale=1);
-    -webkit-filter:grayscale(1)
 }