diff --git a/less/qfq-bs.css.less b/less/qfq-bs.css.less
index 39f3da3c300b60cdd43b367677c7a7afbc90c9ac..7d4feee42948b978483bf822fe62caa6ef5188f1 100644
--- a/less/qfq-bs.css.less
+++ b/less/qfq-bs.css.less
@@ -566,6 +566,15 @@ select.qfq-locked:invalid {
 
 // Fabric Plugin classes
 
+.qfq-fabric-fullscreen {
+  position: absolute;
+  top: 0;
+  left: 0;
+  z-index: 200;
+  width: 100vw;
+  height: 100vh;
+}
+
 .qfq-fabric-bar {
   position: -webkit-sticky;
   position: sticky;