fixed img css

css/default.scss

@@ -185,6 +185,7 @@ article .header {
     font-size: 1.8rem;
   }
 }
+
 /* Next & previous buttons */
 .prev, .next {
   cursor: pointer;
@@ -215,14 +216,14 @@ article .header {
 }
 
 .photo {
-    display: none;
+  display: none;
-    max-height: 50%;
+  flex: 1;
-    flex: 1;
 }
 
 .photo > img {
   max-width: 100%;
   height: 50vh;
+  object-fit: contain;
 }
 
 .svg-img {