DevTools: fix image resource view

Source/devtools/front_end/resourceView.css

 /*
  * Copyright (C) 2006, 2007, 2008 Apple Inc.  All rights reserved.
  * Copyright (C) 2009 Anthony Ricaud <rik@webkit.org>
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
@@ skipping 18 matching lines @@
 
 .resource-view {
     display: none;
     overflow: auto;
 }
 
 .resource-view.visible {
     display: flex;
 }
 
+.resource-view > * {
+    flex: none;
+}
+
 .resource-view.font {
     font-size: 60px;
     white-space: pre-wrap;
     word-wrap: break-word;
     text-align: center;
     padding: 15px;
 }
 
 .resource-view .script-view {
     background-color: rgb(240, 240, 240);
@@ skipping 54 matching lines @@
     white-space: pre;
     content: "\A";
 }
 
 .script-view-fallback {
     word-wrap: break-word;
     white-space: pre-wrap;
     -webkit-user-select: text;
     background-color: inherit;
 }