diff --git a/app/src/assets/template/app/index.tpl b/app/src/assets/template/app/index.tpl
index aac258cd1..c392c26e0 100644
--- a/app/src/assets/template/app/index.tpl
+++ b/app/src/assets/template/app/index.tpl
@@ -1,5 +1,5 @@
 <!DOCTYPE html>
-<html>
+<html style="position: fixed;top: 0;right: 0;left: 0;">
 <head>
     <meta charset="UTF-8">
     <!-- https://electronjs.org/docs/tutorial/security#csp-meta-tag
diff --git a/app/src/layout/dock/index.ts b/app/src/layout/dock/index.ts
index 2588693c0..ab002bb0d 100644
--- a/app/src/layout/dock/index.ts
+++ b/app/src/layout/dock/index.ts
@@ -199,6 +199,8 @@ ${this.position === "Top" ? "top" : "bottom"}:-${this.layout.element.clientHeigh
         } else if (this.position === "Bottom") {
             this.layout.element.style.bottom = -this.layout.element.clientHeight + "px";
         }
+        this.element.querySelector(".dock__item--activefocus")?.classList.remove("dock__item--activefocus");
+        this.layout.element.querySelector(".layout__tab--active")?.classList.remove("layout__tab--active");
     }
 
     public toggleModel(type: TDockType, show = false, close = false) {
diff --git a/app/src/util/globalShortcut.ts b/app/src/util/globalShortcut.ts
index faa90949e..419d436c9 100644
--- a/app/src/util/globalShortcut.ts
+++ b/app/src/util/globalShortcut.ts
@@ -821,6 +821,27 @@ export const globalShortcut = () => {
                 window.siyuan.menus.menu.remove();
             }
         }
+        // dock float 时，点击空白处，隐藏 dock
+        const floatDockLayoutElement = hasClosestByClassName(event.target, "layout--float")
+        if (floatDockLayoutElement) {
+            if (!floatDockLayoutElement.isSameNode(window.siyuan.layout.topDock.layout.element)) {
+                window.siyuan.layout.topDock.hideDock();
+            }
+            if (!floatDockLayoutElement.isSameNode(window.siyuan.layout.bottomDock.layout.element)) {
+                window.siyuan.layout.bottomDock.hideDock();
+            }
+            if (!floatDockLayoutElement.isSameNode(window.siyuan.layout.leftDock.layout.element)) {
+                window.siyuan.layout.leftDock.hideDock();
+            }
+            if (!floatDockLayoutElement.isSameNode(window.siyuan.layout.rightDock.layout.element)) {
+                window.siyuan.layout.rightDock.hideDock();
+            }
+        } else {
+            window.siyuan.layout.topDock.hideDock();
+            window.siyuan.layout.bottomDock.hideDock();
+            window.siyuan.layout.leftDock.hideDock();
+            window.siyuan.layout.rightDock.hideDock();
+        }
         if (!hasClosestByClassName(event.target, "pdf__outer")) {
             document.querySelectorAll(".pdf__util").forEach(item => {
                 item.classList.add("fn__none");
