fix bug

@@ -103,6 +103,10 @@
         overflow: hidden;
         white-space: nowrap;
         text-overflow: ellipsis;
+        position: absolute;
+        left: 0;
+        right: 0;
+        z-index: -1;
     }
 
     .blk-header-left {

@@ -191,13 +191,6 @@
             color: #000;
         }
 
-        .blk-header-main {
-            position: absolute;
-            left: 0;
-            right: 0;
-            z-index: -1;
-        }
-
         .top-box {
             .blk-header {
                 background-color: transparent;