fix classic brand img size issue

 <div class="ad-banner">
     {{#adBanner}}
-        <a href="{{url}}">
+        <a href="{{url}}" target="_blank">
             <img class="lazy-img" data-original="{{image src 1150 160}}" title="{{title}}" alt="{{alt}}">
         </a>
     {{/adBanner}}

@@ -2,10 +2,10 @@
     <div class="brand-img-box {{#if right}}right{{/if}} {{#if bottomSpace}}mb10{{/if}}">
         <a href="{{url}}">
         {{# big}}
-            <img class="big-img lazy-img" data-original="{{image src 556 333}}" alt="big-img">
+            <img class="big-img lazy-img" data-original="{{image src 565 340}}" alt="big-img">
         {{/ big}}
         {{# small}}
-            <img class="small-img lazy-img {{#if @first}}first{{/if}}" data-original="{{image src 283 283}}" alt="big-img">
+            <img class="small-img lazy-img {{#if @first}}first{{/if}}" data-original="{{image src 281 285}}" alt="big-img">
         {{/ small}}
         </a>
 </div>

@@ -21,10 +21,10 @@
     }
 
     .small-img {
-        width: 50%;
+        width: 281px;
         height: 285px;
         display: inline-block;
-        box-sizing: border-box;
+        box-sizing: content-box;
         border: 1px solid $grayBorder;
         border-top: none;