Add guide for CDN, menu reorg

doc/csslayer/TailwindDoc.vue

@@ -0,0 +1,33 @@
+<template>
+    <DocSectionText v-bind="$attrs">
+        <p>
+            Tailwind CSS includes a reset utility in base called <a href="https://tailwindcss.com/docs/preflight" target="_blank" rel="noopener noreferrer">preflight</a>. If you are using this feature, wrap the base and utilities in separate layers
+            and make sure primevue layer comes after the base.
+        </p>
+        <DocSectionCode :code="code" hideToggleCode hideCodeSandbox hideStackBlitz />
+    </DocSectionText>
+</template>
+
+<script>
+export default {
+    data() {
+        return {
+            checked: false,
+            code: {
+                basic: `
+@layer tailwind-base, primevue, tailwind-utilities;
+
+@layer tailwind-base {
+    @tailwind base;
+}
+
+@layer tailwind-utilities {
+    @tailwind components;
+    @tailwind utilities;
+}
+`
+            }
+        };
+    }
+};
+</script>