优化限购码获取按钮样式

@@ -256,9 +256,11 @@ $basicBtnC:#eb0313;
     }
 
     .limit-sale {
+        height: 48px;
         position: absolute;
         right: 84px;
-        top: 24px;
+        top: 50%;
+        margin-top: -24px;
         color: #d0021b;
         border: 2PX solid #d0021b;
         background-color: #fff;

@@ -287,9 +287,11 @@ $basicBtnC:#eb0313;
     }
 
     .limit-sale {
+        height: pxToRem(48px);
         position: absolute;
         right: pxToRem(84px);
-        top: pxToRem(24px);
+        top: 50%;
+        margin-top: pxToRem(-24px);
         color: #d0021b;
         border: 2px solid #d0021b;
         background-color: #fff;