diff --git a/res/css/views/rooms/_AppsDrawer.pcss b/res/css/views/rooms/_AppsDrawer.pcss
index 709a4a627c..3b9413ef90 100644
--- a/res/css/views/rooms/_AppsDrawer.pcss
+++ b/res/css/views/rooms/_AppsDrawer.pcss
@@ -15,8 +15,11 @@ See the License for the specific language governing permissions and
 limitations under the License.
 */
 
-.mx_AppsDrawer {
+:root {
     --AppTile_mini-height: 220px;
+}
+
+.mx_AppsDrawer {
     --minWidth: 240px; /* TODO this should be 300px but that's too large */
 
     margin: var(--container-gap-width);