diff --git a/.devcontainer/devcontainer.json b/.devcontainer/devcontainer.json
index 4b84a9b11..14df8d9a8 100644
--- a/.devcontainer/devcontainer.json
+++ b/.devcontainer/devcontainer.json
@@ -16,7 +16,11 @@
   "settings": {},
 
   // Add the IDs of extensions you want installed when the container is created.
-  "extensions": ["dbaeumer.vscode-eslint"],
+  "extensions": [
+    "dbaeumer.vscode-eslint",
+    "svelte.svelte-vscode",
+    "esbenp.prettier-vscode"
+  ],
 
   // Use 'forwardPorts' to make a list of ports inside the container available locally.
   // "forwardPorts": [],
diff --git a/.eslintignore b/.eslintignore
index c825251d6..3388921f0 100644
--- a/.eslintignore
+++ b/.eslintignore
@@ -4,6 +4,7 @@
 /node_modules
 !/.vscode
 !/.github
+!/.devcontainer
 /prettier-playground
 /tests/fixtures/rules/indent/invalid/ts
 /tests/fixtures/rules/indent/invalid/ts-v5
diff --git a/docs-svelte-kit/src/lib/header/Header.svelte b/docs-svelte-kit/src/lib/header/Header.svelte
index 0a83c3a8c..9850a54d9 100644
--- a/docs-svelte-kit/src/lib/header/Header.svelte
+++ b/docs-svelte-kit/src/lib/header/Header.svelte
@@ -14,7 +14,12 @@
 
 <header>
   <div class="corner">
-    <div class="sidebar-button" on:click={handleToggleSidebar}>
+    <div
+      class="sidebar-button"
+      on:click={handleToggleSidebar}
+      on:keydown={(e) =>
+        (e.code === "Enter" || e.code === "Space") && handleToggleSidebar()}
+    >
       <svg
         xmlns="http://www.w3.org/2000/svg"
         aria-hidden="true"
diff --git a/docs-svelte-kit/src/routes/+layout.svelte b/docs-svelte-kit/src/routes/+layout.svelte
index 370ab8ba2..7eddee2b3 100644
--- a/docs-svelte-kit/src/routes/+layout.svelte
+++ b/docs-svelte-kit/src/routes/+layout.svelte
@@ -36,6 +36,7 @@
 <main
   class:hidden-menu={frontmatter.hiddenMenu}
   on:click={sidebarOpen ? resetSidebarOpen : null}
+  on:keydown={sidebarOpen ? resetSidebarOpen : null}
 >
   <div class="main-content">
     <slot />
diff --git a/package.json b/package.json
index 57ece0000..e35a8fae1 100644
--- a/package.json
+++ b/package.json
@@ -107,7 +107,7 @@
     "@types/markdown-it-container": "^2.0.5",
     "@types/markdown-it-emoji": "^2.0.2",
     "@types/mocha": "^10.0.0",
-    "@types/node": "^16.0.0",
+    "@types/node": "^18.11.0",
     "@types/postcss-safe-parser": "^5.0.1",
     "@types/prismjs": "^1.26.0",
     "@types/stylus": "^0.48.38",
@@ -159,7 +159,7 @@
     "semver": "^7.3.5",
     "simple-git-hooks": "^2.8.0",
     "stylelint": "^14.0.0",
-    "stylelint-config-standard": "^28.0.0",
+    "stylelint-config-standard": "^29.0.0",
     "stylus": "^0.59.0",
     "svelte": "^3.46.1",
     "svelte-adapter-ghpages": "0.0.2",