diff --git a/src/scss/layout/_root.scss b/src/scss/layout/_root.scss
index f967e2cfe8..a495cd346e 100644
--- a/src/scss/layout/_root.scss
+++ b/src/scss/layout/_root.scss
@@ -1,4 +1,5 @@
-:root {
+:root,
+:host {
   font-size: 16px;
   height: 100%;