diff --git a/static/css/theme-neon.css b/static/css/theme-neon.css
index 2020b67dc7..65904b2402 100644
--- a/static/css/theme-neon.css
+++ b/static/css/theme-neon.css
@@ -1,3 +1,7 @@
+/* this variant does not work well if we use fallback styles for IE11 so better
+   ignore this variant in IE completely */
+@supports not (-ms-high-contrast:none) {
+
 /* here in this showcase we use our own modified chroma syntax highlightning style;
    if you want to use a predefined style instead:
    - remove `markup.highlight.noClasses` from your config.toml
@@ -274,3 +278,5 @@ above will not apply, so we have to repeat it here */
     box-shadow: none;
     text-shadow: none;
 }
+
+}