return top position

@@ -6,6 +6,15 @@
 
 var $ = require('yoho-jquery'),
     lazyLoad = require('yoho-jquery-lazyload');
+var $st = $('.service-top');
+
+function reposServiceTop() {
+    if ($(window).width() < 1380) {
+        $st.addClass('for-min');
+    } else {
+        $st.removeClass('for-min');
+    }
+}
 
 $('.blk-footer .return-top').remove(); // 移除通用的返回顶部组件
 
@@ -20,3 +29,8 @@ $('.service, .return-top').hover(function() {
 }, function() {
     $(this).find('.iconfont').removeClass('hide').end().find('.hover-text').addClass('hide');
 });
+
+// repos service-return when window resize
+$(window).resize(reposServiceTop);
+
+reposServiceTop();

@@ -64,6 +64,12 @@
         z-index: 2;
         margin-left: 625px;
 
+        &.for-min {
+            right: 20px;
+            left: initial;
+            margin-left: auto;
+        }
+
         .service,
         .return-top {
             display: block;