md

card/assets/styles/card-preview.scss

@@ -321,9 +321,7 @@
       border: 1px solid #000;
       margin-right: 10px;
       &.rect-li-act {
-        height: 0;
-        border: none;
-        border-bottom: 16px solid #000;
+        background-color: #000;
       }
     }
   }

card/assets/styles/card-temp.css

@@ -264,9 +264,7 @@
   margin-right: 10px;
 }
 .page-number-rect-list li.rect-li-act {
-  height: 0;
-  border: none;
-  border-bottom: 16px solid #000;
+  background-color: #000;
 }
 .page-number-text {
   right: 25%;