diff --git a/www/css/core.css b/www/css/core.css
index 032f9e7b..614273c4 100644
--- a/www/css/core.css
+++ b/www/css/core.css
@@ -235,7 +235,8 @@ body > header{
 body > header > a{
 	background: url("/images/logo-full.svg");
 	-webkit-filter: drop-shadow(1px 1px 0 rgba(0, 0, 0, .75));
-	filter: invert(100%) drop-shadow(1px 1px 0 rgba(0, 0, 0, .75));
+	/* brightness(0) ensures the images are stark white when inverted, since the originals are usually not #000 */
+	filter: brightness(0) invert(100%) drop-shadow(1px 1px 0 rgba(0, 0, 0, .75));
 	height: 70px;
 	width: 300px;
 	background-size: contain;
@@ -2061,8 +2062,7 @@ main.ebooks nav ol li.highlighted:nth-last-child(2)::after{
 	main.front-page > section > section figure.oss img + img,
 	main.front-page > section > h2::before,
 	main.front-page > section > h2::after{
-		/* brightness(0) ensures the images are stark white when inverted, since the originals are usually not #000 */
-		filter: brightness(0) invert() grayscale(100%) brightness(120%); /* grayscale and brightness makes it hit about #eeeeee */
+		filter: invert() grayscale(100%) brightness(120%); /* grayscale and brightness makes it hit about #eeeeee */
 	}
 
 	select,