single img height, fb only, related hr color

sass/base.scss

@@ -2136,6 +2136,10 @@ $padd: 2rem;
 
       // ---------------------------- images on single ---------------------------- */
 
+      img {
+        height: auto;
+      }
+
       .wp-block-image {
         margin: $padd 0;
         position: relative !important;
@@ -2378,13 +2382,12 @@ $padd: 2rem;
     }
   } //#colorbox end
 
-/* -------------------------------- /facebook ------------------------------- */
-
-.fb-page{
-  display: block !important;
-  padding: $padd 0;
-}
+  /* -------------------------------- /facebook ------------------------------- */
 
+  .fb-page {
+    display: block !important;
+    padding: $padd 0;
+  }
 } //body.single, page end
 // ------------------------------ related posts ----------------------------- */
 
@@ -2808,7 +2811,7 @@ body.page {
     a {
       color: $color;
     }
-    hr{
+    hr {
       background-color: $color;
     }
     .authors {
@@ -2821,6 +2824,9 @@ body.page {
       }
     }
   }
+  hr.related-wrap {
+    background-color: $color;
+  }
 }
 $color-be: #fdff00;
 $color-do: #3c00ff;