diff --git a/CBStoreHouseRefreshControl/ContentViewController.m b/CBStoreHouseRefreshControl/ContentViewController.m
index dced6ad..7394023 100644
--- a/CBStoreHouseRefreshControl/ContentViewController.m
+++ b/CBStoreHouseRefreshControl/ContentViewController.m
@@ -17,7 +17,7 @@ @implementation ContentViewController
 
 - (void)viewDidLoad {
     [super viewDidLoad];
-    
+//    self.edgesForExtendedLayout = UIRectEdgeNone;
     self.title = @"Storehouse";
     self.navigationController.navigationBar.barStyle = UIBarStyleBlack;
     self.navigationController.navigationBar.barTintColor = [UIColor colorWithWhite:0.1 alpha:1];
diff --git a/Class/CBStoreHouseRefreshControl.m b/Class/CBStoreHouseRefreshControl.m
index f77dcf6..e6566ff 100644
--- a/Class/CBStoreHouseRefreshControl.m
+++ b/Class/CBStoreHouseRefreshControl.m
@@ -97,10 +97,11 @@ + (CBStoreHouseRefreshControl*)attachToScrollView:(UIScrollView *)scrollView
         CGPoint startPoint = CGPointFromString(startPoints[i]);
         CGPoint endPoint = CGPointFromString(endPoints[i]);
         
-        if (startPoint.x > width) width = startPoint.x;
-        if (endPoint.x > width) width = endPoint.x;
-        if (startPoint.y > height) height = startPoint.y;
-        if (endPoint.y > height) height = endPoint.y;
+        // shift it base on line width
+        if (startPoint.x + lineWidth > width) width = startPoint.x + lineWidth;
+        if (endPoint.x + lineWidth > width) width = endPoint.x + lineWidth;
+        if (startPoint.y + lineWidth > height) height = startPoint.y + lineWidth;
+        if (endPoint.y + lineWidth > height) height = endPoint.y + lineWidth;
     }
     refreshControl.frame = CGRectMake(0, 0, width, height);
 
@@ -110,6 +111,9 @@ + (CBStoreHouseRefreshControl*)attachToScrollView:(UIScrollView *)scrollView
         
         CGPoint startPoint = CGPointFromString(startPoints[i]);
         CGPoint endPoint = CGPointFromString(endPoints[i]);
+        // shift it base on line width
+        startPoint = CGPointMake(startPoint.x + lineWidth/2, startPoint.y + lineWidth/2);
+        endPoint = CGPointMake(endPoint.x + lineWidth/2, endPoint.y + lineWidth/2);
 
         BarItem *barItem = [[BarItem alloc] initWithFrame:refreshControl.frame startPoint:startPoint endPoint:endPoint color:color lineWidth:lineWidth];
         barItem.tag = i;
@@ -136,9 +140,9 @@ + (CBStoreHouseRefreshControl*)attachToScrollView:(UIScrollView *)scrollView
 
 - (void)scrollViewDidScroll
 {
-    if (self.originalTopContentInset == 0) self.originalTopContentInset = self.scrollView.contentInset.top;
     self.center = CGPointMake([UIScreen mainScreen].bounds.size.width/2, self.realContentOffsetY*krelativeHeightFactor);
     if (self.state == CBStoreHouseRefreshControlStateIdle)
+        self.originalTopContentInset = self.scrollView.contentInset.top;
         [self updateBarItemsWithProgress:self.animationProgress];
 }