diff --git a/PHDemo/PHDemo/AlertVC.swift b/PHDemo/PHDemo/AlertVC.swift
index 72948b9..530310c 100644
--- a/PHDemo/PHDemo/AlertVC.swift
+++ b/PHDemo/PHDemo/AlertVC.swift
@@ -71,14 +71,17 @@ class AlertVC: ListVC {
         list.add(title: "文字 + 按钮") { section in
             section.add(title: "只有一小段文字 + 无背景色按钮") {
                 Alert { alert in
+                    alert.config.cardMinWidth = 270
+                    alert.config.cardEdgeInsets = .init(top: 0, left: 0, bottom: 16, right: 0)
+                    alert.config.textEdgeInsets = .init(top: 30, left: 32, bottom: 30, right: 32)
                     alert.config.cardCornerRadius = 12
-                    alert.vm.title = "你正在使用移动网络观看"
                     alert.config.customTextLabel { label in
                         label.font = .systemFont(ofSize: 15)
                     }
                     alert.config.customButton { button in
                         button.titleLabel?.font = .systemFont(ofSize: 15)
                     }
+                    alert.vm.title = "你正在使用移动网络观看"
                 } .onViewDidLoad { vc in
                     guard let alert = vc as? Alert else {
                         return
@@ -97,14 +100,17 @@ class AlertVC: ListVC {
             }
             section.add(title: "只有一段文字 + 无背景色按钮") {
                 Alert { alert in
+                    alert.config.cardMinWidth = 270
+                    alert.config.cardEdgeInsets = .init(top: 0, left: 0, bottom: 16, right: 0)
+                    alert.config.textEdgeInsets = .init(top: 30, left: 32, bottom: 30, right: 32)
                     alert.config.cardCornerRadius = 12
-                    alert.vm.title = "为了维护社区氛围，上麦用户需进行主播认证"
-                    alert.config.customBodyLabel { label in
+                    alert.config.customTextLabel { label in
                         label.font = .systemFont(ofSize: 15)
                     }
                     alert.config.customButton { button in
                         button.titleLabel?.font = .systemFont(ofSize: 15)
                     }
+                    alert.vm.message = "为了维护社区氛围，上麦用户需进行主播认证"
                 } .onViewDidLoad { vc in
                     guard let alert = vc as? Alert else {
                         return
@@ -315,7 +321,7 @@ class AlertVC: ListVC {
                     slider.maximumValue = 100
                     slider.value = 50
                     alert.add(action: slider)
-                    alert.add(actionSpacing: 124)
+                    alert.add(actionSpacing: 24)
                     alert.add(action: "取消", style: .gray)
                 }
             }
diff --git a/PHDemo/PHDemo/SheetVC.swift b/PHDemo/PHDemo/SheetVC.swift
index 53e8743..18532f2 100644
--- a/PHDemo/PHDemo/SheetVC.swift
+++ b/PHDemo/PHDemo/SheetVC.swift
@@ -81,7 +81,6 @@ class SheetVC: ListVC {
                         toast.vm.message = "点击背景将不会dismiss，必须在下方做出选择才能关掉"
                         toast.vm.duration = 2
                     }
-
                 }
             }
         }
@@ -112,13 +111,13 @@ class SheetVC: ListVC {
                     let s2 = UISlider()
                     s2.minimumValue = 0
                     s2.maximumValue = 40
-                    s2.value = Float(sheet.config.edgeInset)
+                    s2.value = Float(sheet.config.screenEdgeInset)
                     sheet.add(subview: s2).snp.makeConstraints { make in
                         make.height.equalTo(50)
                     }
                     if #available(iOS 14.0, *) {
                         s2.addAction(.init(handler: { [unowned s2] act in
-                            sheet.config.edgeInset = CGFloat(s2.value)
+                            sheet.config.screenEdgeInset = CGFloat(s2.value)
                             sheet.reloadData()
                         }), for: .valueChanged)
                     } else {
diff --git a/PHDemo/PHDemo/ToastVC.swift b/PHDemo/PHDemo/ToastVC.swift
index 0023414..99ab424 100644
--- a/PHDemo/PHDemo/ToastVC.swift
+++ b/PHDemo/PHDemo/ToastVC.swift
@@ -155,7 +155,9 @@ class ToastVC: ListVC {
         list.add(title: "实例管理") { section in
             var i = 0
             section.add(title: "多实例共存") {
-                Toast(.loading.title("多实例共存").message("直接创建的实例，以平铺方式排列").duration(2)).push()
+                Toast(.loading.title("多实例共存").message("直接创建的实例，以平铺方式排列").duration(2)) { toast in
+                    toast.config.cardEdgeInsets = .init(top: 32, left: 20, bottom: 32, right: 20)
+                }
             }
             section.add(title: "不存在就创建，存在就更新") {
                 i += 1
@@ -244,12 +246,12 @@ class ToastVC: ListVC {
                     lb.textAlignment = .center
                     stack.addArrangedSubview(lb)
                     
-                    let btn1 = ProHUD.Button(config: toast.config, action: .init(style: .gray, title: "取消"))
+                    let btn1 = ProHUD.ToastButton(config: toast.config, action: .init(style: .gray, title: "取消"))
                     btn1.onTouchUpInside { action in
                         print("点击了取消")
                         testAlert()
                     }
-                    let btn2 = ProHUD.Button(config: toast.config, action: .init(style: .tinted, title: "确定"))
+                    let btn2 = ProHUD.ToastButton(config: toast.config, action: .init(style: .tinted, title: "确定"))
                     btn2.onTouchUp { action in
                         print("点击了确定")
                         testAlert()
diff --git a/Sources/ProHUD/Alert/Alert.swift b/Sources/ProHUD/Alert/Alert.swift
index 0d31837..88b785b 100644
--- a/Sources/ProHUD/Alert/Alert.swift
+++ b/Sources/ProHUD/Alert/Alert.swift
@@ -20,16 +20,18 @@ public class Alert: ProHUD.Controller {
     /// 内容容器（包括icon、textStack、actionStack)
     public lazy var contentStack: StackView = {
         let stack = StackView(axis: .vertical)
-        stack.spacing = config.margin
+        stack.spacing = 24
         stack.alignment = .center
+        config.customContentStack?(stack)
         return stack
     }()
     
     /// 文本区容器
     public lazy var textStack: StackView = {
         let stack = StackView(axis: .vertical)
-        stack.spacing = config.margin
+        stack.spacing = 8
         stack.alignment = .center
+        config.customTextStack?(stack)
         return stack
     }()
     
@@ -66,7 +68,8 @@ public class Alert: ProHUD.Controller {
         let stack = StackView()
         stack.alignment = .fill
         stack.distribution = .fillEqually
-        stack.spacing = config.margin
+        stack.spacing = 8
+        config.customActionStack?(stack)
         return stack
     }()
     
diff --git a/Sources/ProHUD/Alert/AlertButton.swift b/Sources/ProHUD/Alert/AlertButton.swift
index 52f7ca1..ac31d93 100644
--- a/Sources/ProHUD/Alert/AlertButton.swift
+++ b/Sources/ProHUD/Alert/AlertButton.swift
@@ -15,6 +15,7 @@ public class AlertButton: Button {
     
     public override func update(config: ProHUD.Configuration, action: Action) {
         titleLabel?.font = .boldSystemFont(ofSize: 15)
+        layer.cornerRadiusWithContinuous = 8
         super.update(config: config, action: action)
     }
     
diff --git a/Sources/ProHUD/Alert/AlertConfiguration.swift b/Sources/ProHUD/Alert/AlertConfiguration.swift
index a041f3a..071ab4d 100644
--- a/Sources/ProHUD/Alert/AlertConfiguration.swift
+++ b/Sources/ProHUD/Alert/AlertConfiguration.swift
@@ -11,6 +11,7 @@ public extension Alert {
     
     class Configuration: ProHUD.Configuration {
         
+        
         /// 指定排列方向（默认两个按钮水平排列，超过时垂直排列）
         public var actionAxis: NSLayoutConstraint.Axis?
         
diff --git a/Sources/ProHUD/Alert/AlertDefaultLayout.swift b/Sources/ProHUD/Alert/AlertDefaultLayout.swift
index 1fccdfb..62c730f 100644
--- a/Sources/ProHUD/Alert/AlertDefaultLayout.swift
+++ b/Sources/ProHUD/Alert/AlertDefaultLayout.swift
@@ -84,17 +84,19 @@ extension Alert: DefaultLayout {
         contentView.snp.remakeConstraints { make in
             make.center.equalToSuperview()
             if customView == nil {
-                make.width.greaterThanOrEqualTo(config.cardMinWidth).priority(.low)
+                make.width.greaterThanOrEqualTo(config.cardMinWidth)
                 make.width.lessThanOrEqualTo(config.cardMaxWidthByDefault)
-                make.height.greaterThanOrEqualTo(config.cardMinHeight).priority(.low)
+                make.height.greaterThanOrEqualTo(config.cardMinHeight)
                 make.height.lessThanOrEqualTo(config.cardMaxHeightByDefault)
             }
         }
         if contentStack.superview == nil {
             contentView.addSubview(contentStack)
-            contentStack.spacing = config.margin + config.padding
             contentStack.snp.remakeConstraints { make in
-                make.edges.equalTo(contentView).inset(config.padding)
+                make.top.equalToSuperview().inset(config.cardEdgeInsets.top)
+                make.left.equalToSuperview().inset(config.cardEdgeInsets.left)
+                make.bottom.equalToSuperview().inset(config.cardEdgeInsets.bottom)
+                make.right.equalToSuperview().inset(config.cardEdgeInsets.right)
             }
         }
         // card background
@@ -144,8 +146,8 @@ extension Alert {
             if imageView.superview == nil {
                 contentStack.insertArrangedSubview(imageView, at: 0)
                 imageView.snp.remakeConstraints { (mk) in
-                    mk.top.left.greaterThanOrEqualTo(contentView).inset(config.padding*2.25)
-                    mk.right.bottom.lessThanOrEqualTo(contentView).inset(config.padding*2.25)
+                    mk.top.left.greaterThanOrEqualTo(contentView).inset(config.cardEdgeInsets.top * 2)
+                    mk.right.bottom.lessThanOrEqualTo(contentView).inset(config.cardEdgeInsets.right * 2)
                     mk.width.equalTo(config.iconSize.width)
                     mk.height.equalTo(config.iconSize.height)
                 }
@@ -172,15 +174,10 @@ extension Alert {
                     contentStack.insertArrangedSubview(textStack, at: 0)
                 }
                 textStack.snp.remakeConstraints { (mk) in
-                    mk.top.greaterThanOrEqualTo(contentView).inset(config.padding*1.875)
-                    mk.bottom.lessThanOrEqualTo(contentView).inset(config.padding*1.875)
-                    if UIScreen.main.bounds.width < 414 {
-                        mk.left.greaterThanOrEqualTo(contentView).inset(config.padding*2)
-                        mk.right.lessThanOrEqualTo(contentView).inset(config.padding*2)
-                    } else {
-                        mk.left.greaterThanOrEqualTo(contentView).inset(config.padding*3)
-                        mk.right.lessThanOrEqualTo(contentView).inset(config.padding*3)
-                    }
+                    mk.left.greaterThanOrEqualToSuperview().inset(config.textEdgeInsets.left)
+                    mk.right.lessThanOrEqualToSuperview().inset(config.textEdgeInsets.right)
+                    mk.top.greaterThanOrEqualTo(contentView).inset(config.cardEdgeInsets.top + config.textEdgeInsets.top)
+                    mk.bottom.lessThanOrEqualTo(contentView).inset(config.cardEdgeInsets.bottom + config.textEdgeInsets.bottom)
                 }
             }
             if titleCount > 0 {
diff --git a/Sources/ProHUD/Alert/AlertManager.swift b/Sources/ProHUD/Alert/AlertManager.swift
index af367d4..b71f0a1 100644
--- a/Sources/ProHUD/Alert/AlertManager.swift
+++ b/Sources/ProHUD/Alert/AlertManager.swift
@@ -73,7 +73,7 @@ public extension Alert {
     static func lazyPush(identifier: String? = nil, file: String = #file, line: Int = #line, handler: @escaping (_ alert: Alert) -> Void, onExists: ((_ alert: Alert) -> Void)? = nil) {
         let id = identifier ?? (file + "#\(line)")
         if let vc = AlertWindow.alerts.last(where: { $0.identifier == id }) {
-            onExists?(vc)
+            vc.update(handler: onExists ?? handler)
         } else {
             Alert { alert in
                 alert.identifier = id
diff --git a/Sources/ProHUD/Core/Models/Configuration.swift b/Sources/ProHUD/Core/Models/Configuration.swift
index 8a1548d..9a0b9fe 100644
--- a/Sources/ProHUD/Core/Models/Configuration.swift
+++ b/Sources/ProHUD/Core/Models/Configuration.swift
@@ -90,18 +90,40 @@ public class Configuration: NSObject {
     /// 最小高度
     public var cardMinHeight = CGFloat(32)
     
+    /// 卡片内边距
+    public var cardEdgeInsets: UIEdgeInsets = {
+        .init(top: 16, left: 16, bottom: 16, right: 16)
+    }()
+    
+    /// 文字区域内边距
+    public var textEdgeInsets: UIEdgeInsets = {
+        .init(top: 16, left: 16, bottom: 16, right: 16)
+    }()
+    
     /// 卡片圆角
     public var cardCornerRadius: CGFloat?
     var cardCornerRadiusByDefault: CGFloat { cardCornerRadius ?? 16 }
     
-    /// 余量：元素与元素之间的距离
-    public var margin = CGFloat(8)
     /// 填充：元素内部控件距离元素边界的距离
     public var padding = CGFloat(16)
     
     /// 颜色
     public var tintColor: UIColor?
     
+    
+    var customContentStack: ((_ stack: StackView) -> Void)?
+    public func customContentStack(handler: @escaping (_ stack: StackView) -> Void) {
+        customContentStack = handler
+    }
+    var customTextStack: ((_ stack: StackView) -> Void)?
+    public func customTextStack(handler: @escaping (_ stack: StackView) -> Void) {
+        customTextStack = handler
+    }
+    var customActionStack: ((_ stack: StackView) -> Void)?
+    public func customActionStack(handler: @escaping (_ stack: StackView) -> Void) {
+        customActionStack = handler
+    }
+    
     // MARK: 图标样式
     /// 图标尺寸
     public var iconSize = CGSize(width: 44, height: 44)
@@ -144,10 +166,6 @@ public class Configuration: NSObject {
         customButton = handler
     }
     
-    /// 按钮圆角
-    public var buttonCornerRadius: CGFloat?
-    var buttonCornerRadiusByDefault: CGFloat { buttonCornerRadius ?? 8 }
-    
     // MARK: 动画
     
     public var animateDurationForBuildIn: TimeInterval?
diff --git a/Sources/ProHUD/Core/Views/Button.swift b/Sources/ProHUD/Core/Views/Button.swift
index 287642e..00c67ff 100644
--- a/Sources/ProHUD/Core/Views/Button.swift
+++ b/Sources/ProHUD/Core/Views/Button.swift
@@ -31,13 +31,13 @@ open class Button: UIButton {
     
     public convenience init(config: ProHUD.Configuration, action: Action) {
         self.init(frame: .zero)
+        layer.cornerRadiusWithContinuous = 8
         self.update(config: config, action: action)
     }
     
     /// 更新按钮
     /// - Parameter style: 样式
     open func update(config: ProHUD.Configuration, action: Action) {
-        layer.cornerRadiusWithContinuous = config.buttonCornerRadiusByDefault
         self.action = action
         setTitle(action.title, for: .normal)
         switch action.style {
diff --git a/Sources/ProHUD/Sheet/Sheet.swift b/Sources/ProHUD/Sheet/Sheet.swift
index e34a9e0..635205e 100644
--- a/Sources/ProHUD/Sheet/Sheet.swift
+++ b/Sources/ProHUD/Sheet/Sheet.swift
@@ -27,8 +27,9 @@ public class Sheet: Controller {
     /// 内容容器（包括icon、textStack、actionStack)
     public lazy var contentStack: StackView = {
         let stack = StackView()
-        stack.spacing = config.margin
+        stack.spacing = 8
         stack.alignment = .fill
+        config.customContentStack?(stack)
         return stack
     }()
     
diff --git a/Sources/ProHUD/Sheet/SheetButton.swift b/Sources/ProHUD/Sheet/SheetButton.swift
index 659d0a3..6a0d745 100644
--- a/Sources/ProHUD/Sheet/SheetButton.swift
+++ b/Sources/ProHUD/Sheet/SheetButton.swift
@@ -15,6 +15,7 @@ public class SheetButton: Button {
     
     public override func update(config: ProHUD.Configuration, action: Action) {
         titleLabel?.font = .boldSystemFont(ofSize: 18)
+        layer.cornerRadiusWithContinuous = 12
         super.update(config: config, action: action)
     }
     
diff --git a/Sources/ProHUD/Sheet/SheetConfiguration.swift b/Sources/ProHUD/Sheet/SheetConfiguration.swift
index 6b91b6f..d846ca6 100644
--- a/Sources/ProHUD/Sheet/SheetConfiguration.swift
+++ b/Sources/ProHUD/Sheet/SheetConfiguration.swift
@@ -12,7 +12,7 @@ public extension Sheet {
     class Configuration: ProHUD.Configuration {
         
         /// 卡片距离屏幕的间距
-        public var edgeInset: CGFloat = 4
+        public var screenEdgeInset: CGFloat = 4
         
         /// 是否是全屏的页面
         public var isFullScreen = false
@@ -45,8 +45,6 @@ public extension Sheet {
         
         override var cardMaxHeightByDefault: CGFloat { cardMaxHeight ?? (UIScreen.main.bounds.height - 50) }
         
-        override var buttonCornerRadiusByDefault: CGFloat { buttonCornerRadius ?? 12 }
-        
         override var animateDurationForBuildInByDefault: CGFloat {
             animateDurationForBuildIn ?? 0.5
         }
diff --git a/Sources/ProHUD/Sheet/SheetConvenienceLayout.swift b/Sources/ProHUD/Sheet/SheetConvenienceLayout.swift
index 04642a8..151afac 100644
--- a/Sources/ProHUD/Sheet/SheetConvenienceLayout.swift
+++ b/Sources/ProHUD/Sheet/SheetConvenienceLayout.swift
@@ -153,10 +153,10 @@ public extension Sheet {
         if #available(iOS 11.0, *) {
             let count = contentStack.arrangedSubviews.count
             if count > 0 {
-                contentStack.setCustomSpacing(config.margin * 1.5, after: contentStack.arrangedSubviews[count-1])
+                contentStack.setCustomSpacing(12, after: contentStack.arrangedSubviews[count-1])
             }
             if count > 1 {
-                contentStack.setCustomSpacing(config.margin * 2, after: contentStack.arrangedSubviews[count-2])
+                contentStack.setCustomSpacing(16, after: contentStack.arrangedSubviews[count-2])
             }
         } else {
             // Fallback on earlier versions
diff --git a/Sources/ProHUD/Sheet/SheetDefaultLayout.swift b/Sources/ProHUD/Sheet/SheetDefaultLayout.swift
index 9c2ce45..70dc8f6 100644
--- a/Sources/ProHUD/Sheet/SheetDefaultLayout.swift
+++ b/Sources/ProHUD/Sheet/SheetDefaultLayout.swift
@@ -44,7 +44,7 @@ extension Sheet: DefaultLayout {
         loadContentMaskViewIfNeeded()
         // layout
         let maxWidth = config.cardMaxWidthByDefault
-        var width = UIScreen.main.bounds.width - config.edgeInset * 2
+        var width = UIScreen.main.bounds.width - config.screenEdgeInset * 2
         if width > maxWidth {
             // landscape iPhone or iPad
             width = maxWidth
@@ -56,7 +56,7 @@ extension Sheet: DefaultLayout {
                 make.centerX.equalToSuperview()
                 if UIDevice.current.userInterfaceIdiom == .phone {
                     if width < maxWidth {
-                        make.bottom.equalToSuperview().inset(config.edgeInset)
+                        make.bottom.equalToSuperview().inset(config.screenEdgeInset)
                     } else {
                         make.bottom.equalToSuperview().inset(screenSafeAreaInsets.bottom)
                     }
@@ -78,16 +78,20 @@ extension Sheet: DefaultLayout {
         if contentStack.superview == nil {
             contentView.addSubview(contentStack)
             contentStack.snp.remakeConstraints { make in
+                let safeArea: UIEdgeInsets
                 if config.isFullScreen {
-                    make.top.equalToSuperview().offset(screenSafeAreaInsets.top)
+                    safeArea = screenSafeAreaInsets
                 } else {
-                    make.top.equalToSuperview().offset(config.padding * 2)
+                    safeArea = .zero
                 }
-                make.bottom.equalToSuperview().inset(config.padding * 2)
+                make.top.equalToSuperview().offset(safeArea.top + config.cardEdgeInsets.top)
+                make.bottom.equalToSuperview().inset(safeArea.bottom + config.cardEdgeInsets.bottom)
                 if isPortrait {
-                    make.left.right.equalToSuperview().inset(config.padding)
+                    make.left.equalToSuperview().inset(safeArea.left + config.cardEdgeInsets.left)
+                    make.right.equalToSuperview().inset(safeArea.right + config.cardEdgeInsets.right)
                 } else {
-                    make.left.right.equalToSuperview().inset(config.padding * 2)
+                    make.left.equalToSuperview().inset(safeArea.left + config.cardEdgeInsets.left * 2)
+                    make.right.equalToSuperview().inset(safeArea.right + config.cardEdgeInsets.right * 2)
                 }
             }
         }
diff --git a/Sources/ProHUD/Sheet/SheetManager.swift b/Sources/ProHUD/Sheet/SheetManager.swift
index 2c6fd71..585b3bf 100644
--- a/Sources/ProHUD/Sheet/SheetManager.swift
+++ b/Sources/ProHUD/Sheet/SheetManager.swift
@@ -28,7 +28,7 @@ public extension Sheet {
     static func lazyPush(identifier: String? = nil, file: String = #file, line: Int = #line, handler: @escaping (_ sheet: Sheet) -> Void, onExists: ((_ sheet: Sheet) -> Void)? = nil) {
         let id = identifier ?? (file + "#\(line)")
         if let vc = find(identifier: id).last {
-            onExists?(vc)
+            vc.update(handler: onExists ?? handler)
         } else {
             Sheet { sheet in
                 sheet.identifier = id
@@ -86,7 +86,7 @@ extension Sheet {
     
     func _translateOut() {
         backgroundView.alpha = 0
-        contentView.transform = .init(translationX: 0, y: view.frame.size.height - contentView.frame.minY + config.margin)
+        contentView.transform = .init(translationX: 0, y: view.frame.size.height - contentView.frame.minY + config.screenEdgeInset)
     }
     
 }
diff --git a/Sources/ProHUD/Toast/Toast.swift b/Sources/ProHUD/Toast/Toast.swift
index eab521a..b6e5782 100644
--- a/Sources/ProHUD/Toast/Toast.swift
+++ b/Sources/ProHUD/Toast/Toast.swift
@@ -22,15 +22,17 @@ public class Toast: Controller {
     /// 内容容器（包括icon、textStack、actionStack)
     public lazy var contentStack: StackView = {
         let stack = StackView(axis: .vertical)
-        stack.spacing = config.margin * 2
+        stack.spacing = 16
+        config.customContentStack?(stack)
         return stack
     }()
     
     /// 信息容器（image+text）
     public lazy var infoStack: StackView = {
         let stack = StackView(axis: .horizontal)
-        stack.spacing = config.margin
+        stack.spacing = 8
         stack.alignment = .top
+        config.customInfoStack?(stack)
         return stack
     }()
     
@@ -39,13 +41,15 @@ public class Toast: Controller {
         let stack = StackView(axis: .vertical)
         stack.spacing = config.lineSpace
         stack.distribution = .equalSpacing
+        config.customTextStack?(stack)
         return stack
     }()
     
     /// 按钮容器
     public lazy var actionStack: StackView = {
         let stack = StackView(axis: .horizontal)
-        stack.spacing = config.margin
+        stack.spacing = 8
+        config.customActionStack?(stack)
         return stack
     }()
     
diff --git a/Sources/ProHUD/Toast/ToastButton.swift b/Sources/ProHUD/Toast/ToastButton.swift
index 3602241..523d7b1 100644
--- a/Sources/ProHUD/Toast/ToastButton.swift
+++ b/Sources/ProHUD/Toast/ToastButton.swift
@@ -15,6 +15,7 @@ public class ToastButton: Button {
     
     public override func update(config: ProHUD.Configuration, action: Action) {
         titleLabel?.font = .boldSystemFont(ofSize: 15)
+        layer.cornerRadiusWithContinuous = 8
         super.update(config: config, action: action)
     }
     
diff --git a/Sources/ProHUD/Toast/ToastConfiguration.swift b/Sources/ProHUD/Toast/ToastConfiguration.swift
index f661b6d..cffdc10 100644
--- a/Sources/ProHUD/Toast/ToastConfiguration.swift
+++ b/Sources/ProHUD/Toast/ToastConfiguration.swift
@@ -11,6 +11,13 @@ public extension Toast {
     
     class Configuration: ProHUD.Configuration {
         
+        /// 元素与元素之间的距离
+        public var margin = CGFloat(8)
+        
+        var customInfoStack: ((_ stack: StackView) -> Void)?
+        public func customInfoStack(handler: @escaping (_ stack: StackView) -> Void) {
+            customInfoStack = handler
+        }
         /// 行间距
         public var lineSpace = CGFloat(4)
         
diff --git a/Sources/ProHUD/Toast/ToastDefaultLayout.swift b/Sources/ProHUD/Toast/ToastDefaultLayout.swift
index 81bf152..67ee65d 100644
--- a/Sources/ProHUD/Toast/ToastDefaultLayout.swift
+++ b/Sources/ProHUD/Toast/ToastDefaultLayout.swift
@@ -96,8 +96,11 @@ extension Toast: DefaultLayout {
         // stacks
         if contentStack.superview != contentView {
             contentView.addSubview(contentStack)
-            contentStack.snp.remakeConstraints { (mk) in
-                mk.edges.equalToSuperview().inset(config.padding)
+            contentStack.snp.remakeConstraints { make in
+                make.top.equalToSuperview().inset(config.cardEdgeInsets.top)
+                make.left.equalToSuperview().inset(config.cardEdgeInsets.left)
+                make.bottom.equalToSuperview().inset(config.cardEdgeInsets.bottom)
+                make.right.equalToSuperview().inset(config.cardEdgeInsets.right)
             }
         }
         contentStack.insertArrangedSubview(infoStack, at: 0)
diff --git a/Sources/ProHUD/Toast/ToastManager.swift b/Sources/ProHUD/Toast/ToastManager.swift
index 2e4a804..569d860 100644
--- a/Sources/ProHUD/Toast/ToastManager.swift
+++ b/Sources/ProHUD/Toast/ToastManager.swift
@@ -28,7 +28,7 @@ public extension Toast {
     static func lazyPush(identifier: String? = nil, file: String = #file, line: Int = #line, handler: @escaping (_ toast: Toast) -> Void, onExists: ((_ toast: Toast) -> Void)? = nil) {
         let id = identifier ?? (file + "#\(line)")
         if let vc = find(identifier: id).last {
-            onExists?(vc)
+            vc.update(handler: onExists ?? handler)
         } else {
             Toast { toast in
                 toast.identifier = id
diff --git a/Sources/ProHUD/Toast/ToastWindow.swift b/Sources/ProHUD/Toast/ToastWindow.swift
index be3a42d..fa4cdf2 100644
--- a/Sources/ProHUD/Toast/ToastWindow.swift
+++ b/Sources/ProHUD/Toast/ToastWindow.swift
@@ -50,7 +50,7 @@ class ToastWindow: Window {
         }
         let config = toast.config
         // frame
-        let width = CGFloat.minimum(UIScreen.main.bounds.width - 2*config.margin, config.cardMaxWidthByDefault)
+        let width = CGFloat.minimum(UIScreen.main.bounds.width - config.cardEdgeInsets.left - config.cardEdgeInsets.right, config.cardMaxWidthByDefault)
         toast.view.frame.size = CGSize(width: width, height: config.cardMaxHeightByDefault)
         toast.titleLabel.sizeToFit()
         toast.bodyLabel.sizeToFit()
@@ -164,7 +164,7 @@ fileprivate extension Toast {
             height = CGFloat.maximum(v.frame.maxY, height)
         }
         // 上下边间距
-        height += 2 * config.padding
+        height += config.cardEdgeInsets.top + config.cardEdgeInsets.bottom
         return height
     }
 }