postcss 完善

@@ -42,13 +42,14 @@ gulp.task('default', ['postcss-dev', 'postcss-watch', 'spm-doc']);
 function postcssEnvPlugin(env) {
     var sprites = {
         spritesmith: {
-            padding: 2
+            padding: 4
         },
         groupBy: function(file) {
 
             // 根据目录分组，防止合并后的图片太大
             var group = file.url.split('/')[1];
 
+            file.retina = true; // H5 强制所有图片都是用二倍图
             return group ? Promise.resolve(group) : Promise.reject();
         },
         filterBy: function(file) {

@@ -2,7 +2,7 @@
     float: left;
     width: 276px;
     height: 486px;
-    margin: 0 (15px) (15px);
+    margin: 0 15px 15px;
 
     .tag-container {
         height: 28px;
@@ -114,7 +114,7 @@
             color: #000;
         }
         .market-price {
-            margin: 0 0 0 (5px);
+            margin: 0 0 0 5px;
             color: #b0b0b0;
             text-decoration: line-through;
         }

@@ -154,7 +154,7 @@
     }
 
     .hot-brand {
-        margin: (30px) 0 0;
+        margin: 30px 0 0;
 
         .hot-brand-list {
             background: #fff;

@@ -23,7 +23,7 @@
     }
     .download-btn {
         display: block;
-        margin: (18px) auto 0;
+        margin: 18px auto 0;
         width: 294px;
         height: 64px;
         line-height: 64px;

@@ -192,7 +192,7 @@
         a {
             position: relative;
             display: block;
-            margin: 0 0 0 (30px);
+            margin: 0 0 0 30px;
             padding-left: 10px;
             font-size: 36px;
             z-index: 2;

@@ -88,7 +88,7 @@
     margin-top: 20px;
     width: 100%;
     height: 20px;
-    line-height: (20px) auto;
+    line-height: 20px auto;
     text-align: center;
 }
 

@@ -99,7 +99,7 @@ $border_color_light: #eee;
   }
 
   .timeline-info {
-    padding: (20px) 0;
+    padding: 20px 0;
     @mixin set-singleBorder "bottom",$border_color_strong;
   }
 

-/*$suggest: sprite-map("/me/suggest/*.png",$spacing: 5px);*/
-
 .yoho-suggest-page {
     width: 100%;
     height: auto;