diff --git a/Serrata.podspec b/Serrata.podspec
new file mode 100644
index 0000000..f8371c0
--- /dev/null
+++ b/Serrata.podspec
@@ -0,0 +1,33 @@
+Pod::Spec.new do |s|
+  s.name         = "Serrata"
+  s.version      = "1.0.0"
+  s.summary      = "Slide image viewer library similar to twitter and LINE"
+
+  s.description  = <<-DESC
+                   You can use it simply by passing the necessary information.
+
+                   It is a UI library that allows you to intuitively view images.
+
+                   Kingfisher is a lightweight and pure Swift implemented library.
+
+                   Kingfisher is used in the Serrata. I sincerely respect Kingfisher.
+                   DESC
+
+  s.homepage     = "https://github.com/horitaku46/Serrata"
+  s.license      = { :type => "MIT", :file => "./LICENSE" }
+
+  s.author             = { "Takuma Horiuchi" => "horitaku46@gmail.com" }
+  s.social_media_url   = "https://twitter.com/horitaku_"
+
+  s.platform     = :ios, "10.0"
+  s.source       = { :git => "https://github.com/horitaku46/Serrata.git", :tag => "#{s.version}" }
+
+  s.ios.deployment_target = '10.0'
+
+  s.source_files = "Serrata/**/*"
+  s.resource_bundles = {
+      "Serrata" => ["Serrata/**/*"]
+  }
+
+  s.dependency "Kingfisher"
+end
diff --git a/Serrata/Sources/ImageDetailView.swift b/Serrata/Sources/ImageDetailView.swift
index ad3efd2..fb84635 100644
--- a/Serrata/Sources/ImageDetailView.swift
+++ b/Serrata/Sources/ImageDetailView.swift
@@ -34,8 +34,9 @@ open class ImageDetailView: UIView {
 
     @IBOutlet weak private var closeButton: UIButton! { // UIButtonType = custom
         didSet {
-            closeButton.setImage(UIImage(named: "close_cross"), for: .normal)
-            closeButton.setImage(UIImage(named: "close_cross"), for: .highlighted)
+            let closeImage = UIImage(named: "close_cross", in: Bundle(for: ImageDetailView.self), compatibleWith: nil)
+            closeButton.setImage(closeImage, for: .normal)
+            closeButton.setImage(closeImage, for: .highlighted)
             closeButton.layer.cornerRadius = closeButton.bounds.height / 2
             closeButton.backgroundColor = UIColor(white: 0, alpha: ImageDetailConst.maxAlpha)
         }
diff --git a/Serrata/Sources/SlideLeafViewController.swift b/Serrata/Sources/SlideLeafViewController.swift
index 4aeae45..894ae40 100644
--- a/Serrata/Sources/SlideLeafViewController.swift
+++ b/Serrata/Sources/SlideLeafViewController.swift
@@ -39,7 +39,7 @@ fileprivate enum SlideLeafConst {
 
     @IBOutlet weak private var collectionView: UICollectionView! {
         didSet {
-            collectionView.register(UINib(nibName: "SlideLeafCell", bundle: nil), forCellWithReuseIdentifier: "SlideLeafCell")
+            collectionView.register(UINib(nibName: "SlideLeafCell", bundle: Bundle(for: SlideLeaf.self)), forCellWithReuseIdentifier: "SlideLeafCell")
             collectionView.isPagingEnabled = true
             collectionView.backgroundColor = .clear
             collectionView.showsHorizontalScrollIndicator = false
@@ -113,7 +113,7 @@ fileprivate enum SlideLeafConst {
     private var isDecideDissmiss = false
 
     open class func make(leafs: [SlideLeaf], startIndex: Int = 0, fromImageView: UIImageView? = nil) -> SlideLeafViewController {
-        let viewController = UIStoryboard(name: "SlideLeafViewController", bundle: nil)
+        let viewController = UIStoryboard(name: "SlideLeafViewController", bundle: Bundle(for: SlideLeafViewController.self))
             .instantiateViewController(withIdentifier: "SlideLeafViewController") as! SlideLeafViewController
         viewController.transitioningDelegate = viewController.serrataTransition
         viewController.slideLeafs = leafs