diff --git a/center-content.el b/center-content.el
index dcbab6f..86694eb 100644
--- a/center-content.el
+++ b/center-content.el
@@ -24,6 +24,15 @@
   :type 'boolean
   :group 'center-content)
 
+(defcustom center-content-vertical-by-overlay nil
+  "Enable vertical by using overlays.
+
+  Using overlays for vertical centering may give some undesirable
+  effects on the first line. By default, vertical centering is achieved
+  by using setting `header-line-format'."
+  :type 'boolean
+  :group 'center-content)
+
 (defcustom center-content-hide-mode-line t
   "Hide mode-line when centering."
   :type 'boolean
@@ -32,6 +41,9 @@
 (defvar-local center-content--horizontal-overlay nil
   "Overlay used to add left margin for horizontal centering.")
 
+(defvar-local center-content--vertical-overlay nil
+  "Overlay used to add top margin for vertical centering.")
+
 (defvar-local center-content--original-header-line-format header-line-format
   "Stores the original `header-line-format` to restore upon disabling.")
 
@@ -73,6 +85,15 @@
           (face-remap-add-relative 'header-line 'default))
     (setq header-line-format (propertize " " 'display `(height ,top-margin)))))
 
+(defun center-content--vertical-by-overlay (content-height)
+  "Add overlay for vertical centering relative to CONTENT-HEIGHT."
+  (let* ((top-margin (center-content--calculate-top-margin content-height))
+         (overlay (make-overlay  (window-start) (window-start) nil t t))
+         (space (propertize " " 'display `(space :width 0 :height ,top-margin))))
+    (overlay-put overlay 'intangible t)
+    (overlay-put overlay 'before-string space)
+    (setq center-content--vertical-overlay overlay)))
+
 (defun center-content--enable ()
   "Enable horizontal and vertical centering of content."
   (setq center-content--original-header-line-format header-line-format)
@@ -81,7 +102,9 @@
     (when center-content-horizontal
       (center-content--horizontal (car content-size)))
     (when center-content-vertical
-      (center-content--vertical (cdr content-size)))
+      (if center-content-vertical-by-overlay
+          (center-content--vertical-by-overlay (cdr content-size))
+        (center-content--vertical (cdr content-size))))
     (when center-content-hide-mode-line
       (setq mode-line-format nil))))
 
@@ -91,6 +114,10 @@
   (when (overlayp center-content--horizontal-overlay)
     (delete-overlay center-content--horizontal-overlay)
     (setq center-content--horizontal-overlay nil))
+  ;; Remove vertical centering overlay
+  (when (overlayp center-content--vertical-overlay)
+    (delete-overlay center-content--vertical-overlay)
+    (setq center-content--horizontal-overlay nil))
   ;; Restore the header-line face remapping
   (when center-content--header-line-face-remap-cookie
     (face-remap-remove-relative center-content--header-line-face-remap-cookie)