线上bug－物流信息没有边框线

 $logistic_gray: #f0f0f0;
-$border_color_strong: #e3e3e3;
+$border_color_strong: #e5e5e5;
 $border_color_light: #eee;
 
-@define-mixin set-singleBorder $side,$c {
-  border-$(side): 1px solid $(c);
-}
-
 .logistic-page {
   background-color: $logistic_gray;
 
@@ -17,8 +13,7 @@ $border_color_light: #eee;
     background-color: #fff;
     color: #464646;
 
-    @mixin set-singleBorder "bottom",$border_color_strong;
-
+    border-bottom: 1px solid $border_color_strong;
     .left {
       width: 19%;
       float: left;
@@ -71,8 +66,7 @@ $border_color_light: #eee;
   }
 
   .timeline-box {
-    @mixin set-singleBorder "left",$border_color_strong;
-
+    border-left: 1px solid $border_color_strong;
     position: relative;
     padding-left: 52px;
   }
@@ -100,7 +94,7 @@ $border_color_light: #eee;
 
   .timeline-info {
     padding: 20px 0;
-    @mixin set-singleBorder "bottom",$border_color_strong;
+    border-bottom: 1px solid $border_color_strong;
   }
 
   .timeline-box:last-child {