Avoid image caption shifting on load

_sass/addon/commons.scss

@@ -192,6 +192,8 @@ img[data-src] {
   &.shadow {
     filter: drop-shadow(2px 4px 6px rgba(0, 0, 0, 0.08));
   }
+
+  @extend %img-caption;
 }
 
 /* --- Panels --- */
@@ -439,13 +441,8 @@ img[data-src] {
       }
     }
 
-    &.img-link + em {
-      display: block;
-      text-align: center;
-      font-style: normal;
-      font-size: 80%;
-      padding: 0;
-      color: #6d6c6c;
+    &.img-link {
+      @extend %img-caption;
     }
 
   }

_sass/addon/module.scss

@@ -93,6 +93,17 @@
   font-style: normal;
 }
 
+%img-caption {
+  + em {
+    display: block;
+    text-align: center;
+    font-style: normal;
+    font-size: 80%;
+    padding: 0;
+    color: #6d6c6c;
+  }
+}
+
 /* ---------- scss mixin --------- */
 
 @mixin no-text-decoration {