Lightbox doesn't work in custom wizard

assets/javascripts/wizard/templates/components/wizard-field-upload.hbs

@@ -10,11 +10,9 @@
 </label>
 
 {{#if field.value}}
-  <a href="{{field.value.url}}" class="filename">
   {{#unless isImage}}
     {{field.value.original_filename}}
   {{else}}
     <img src={{field.value.url}}  class="wizard-image-preview">
   {{/unless}}
-  </a>
 {{/if}}

assets/stylesheets/wizard/wizard_custom.scss

@@ -233,13 +233,17 @@
   }
 
   .wizard-image-preview  {
-    max-width: 200px;
+    margin-top: 10px;
-    max-height: 200px;
+    max-width: 500px;
+    max-height: 500px;
     overflow: hidden;
+    display: block;
+    border: none;
+    padding: 0;
 
     img {
-      max-width:100%;
+      max-width: 100%;
-      max-height:100%;
+      max-height: 100%;
     }
   }