diff --git a/src/less/style.less b/src/less/style.less
index e9f80a2..8b90d73 100644
--- a/src/less/style.less
+++ b/src/less/style.less
@@ -448,6 +448,8 @@
         position: relative;
         display: flex;
         z-index: 1000;
+        height: 100%;
+        align-items: center;
 
         .text {
             margin: 8px 12px;