diff --git a/lib/core/src/lib/viewer/components/img-viewer.component.scss b/lib/core/src/lib/viewer/components/img-viewer.component.scss
index b29484149d..5377346499 100644
--- a/lib/core/src/lib/viewer/components/img-viewer.component.scss
+++ b/lib/core/src/lib/viewer/components/img-viewer.component.scss
@@ -49,9 +49,6 @@
             margin-left: 10px;
         }
 
-    }
-
-    &__toolbar {
         &-page-scale {
             cursor: default;
             width: 79px;
diff --git a/lib/core/src/lib/viewer/components/pdf-viewer.component.scss b/lib/core/src/lib/viewer/components/pdf-viewer.component.scss
index 994d10c184..61438848b8 100644
--- a/lib/core/src/lib/viewer/components/pdf-viewer.component.scss
+++ b/lib/core/src/lib/viewer/components/pdf-viewer.component.scss
@@ -14,14 +14,9 @@
         height: 100%;
         width: 190px;
         background-color: rgba(0, 0, 0, 0.12);
-    }
-
-    &__thumbnails {
-        width: 180px;
         display: flex;
         flex-direction: column;
         padding: 0;
-        background: #e6e6e6;
 
         .adf-info-drawer-layout {
             display: flex;
@@ -50,20 +45,6 @@
         }
     }
 
-    &__toolbar {
-        &-page-scale {
-            cursor: default;
-            width: 79px;
-            height: 24px;
-            font-size: var(--theme-body-1-font-size);
-            border: 1px solid var(--theme-border-color);
-            text-align: center;
-            line-height: 24px;
-            margin-left: 4px;
-            margin-right: 4px;
-        }
-    }
-
     .adf-thumbnails-template {
         &__container {
             display: flex;
@@ -130,5 +111,17 @@
                 outline-color: gray;
             }
         }
+
+        &-page-scale {
+            cursor: default;
+            width: 79px;
+            height: 24px;
+            font-size: var(--theme-body-1-font-size);
+            border: 1px solid var(--theme-border-color);
+            text-align: center;
+            line-height: 24px;
+            margin-left: 4px;
+            margin-right: 4px;
+        }
     }
 }