diff --git a/src/responsive.ts b/src/responsive.ts
index c881e3f..1a3b5b0 100644
--- a/src/responsive.ts
+++ b/src/responsive.ts
@@ -50,7 +50,7 @@ export default class Responsive
     getBlockWidth(currentWidth: number = document.documentElement.clientWidth)
     {
         let count = this.getNumberOnScreen(currentWidth);
-        return (currentWidth - vhToPx(this.margin) * count * 2) / count - 5;
+        return (currentWidth - vhToPx(this.margin) * count * 2) / count - 1;
     }
 }