brand filter in IE.Review by:@xuqi

@@ -18,7 +18,7 @@ moreUnicode = {
 //品牌相关变量
 var $brandDefault = $('.brand .default'),
     $brandPanel = $('.brand .brand-panel'),
-    $brandAttrs = $('.brand .attr'),
+    $brandAttrs = $brandPanel.find('.attr'),
     $brandMore = $('#brand-more'),
     $brandMulti = $('#brand-multi');
 

@@ -83,6 +83,10 @@
             color: #999;
             float: right;
         }
+
+        .close {
+            font-size: 14px;
+        }
     }
 
     .sort-pre .active .attr {
@@ -188,9 +192,12 @@
             }
 
             .btn {
+                position: relative;
                 display: inline-block;
+                top: -1px;
                 width: 55px;
-                height: 18px;
+                height: 20px;
+                line-height: 20px;
                 background: #3a3a3a;
                 color: #fff;
                 text-align: center;