init

src/pages/404.js

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+import * as React from "react"
+import { Link } from "gatsby"
+
+const pageStyles = {
+  color: "#232129",
+  padding: "96px",
+  fontFamily: "-apple-system, Roboto, sans-serif, serif",
+}
+const headingStyles = {
+  marginTop: 0,
+  marginBottom: 64,
+  maxWidth: 320,
+}
+
+const paragraphStyles = {
+  marginBottom: 48,
+}
+const codeStyles = {
+  color: "#8A6534",
+  padding: 4,
+  backgroundColor: "#FFF4DB",
+  fontSize: "1.25rem",
+  borderRadius: 4,
+}
+
+const NotFoundPage = () => {
+  return (
+    <main style={pageStyles}>
+      <h1 style={headingStyles}>Page not found</h1>
+      <p style={paragraphStyles}>
+        Sorry 😔, we couldn’t find what you were looking for.
+        <br />
+        {process.env.NODE_ENV === "development" ? (
+          <>
+            <br />
+            Try creating a page in <code style={codeStyles}>src/pages/</code>.
+            <br />
+          </>
+        ) : null}
+        <br />
+        <Link to="/">Go home</Link>.
+      </p>
+    </main>
+  )
+}
+
+export default NotFoundPage
+
+export const Head = () => <title>Not found</title>

src/pages/about.js

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+import * as React from "react"
+import Header from "../components/header"
+
+
+const AboutPage = () => {
+  return (
+    <main>
+      <Header></Header>
+      <h1 className="text-3xl font-bold">
+        About page
+      </h1>
+    </main>
+  )
+}
+
+export const Head = () => <title>About Page</title>
+
+export default AboutPage

src/pages/blog.js

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+import * as React from "react"
+import Header from "../components/header"
+
+
+const BlogPage = () => {
+  return (
+    <main>
+      <Header></Header>
+      <h1 className="text-3xl font-bold">
+        Blog page
+      </h1>
+    </main>
+  )
+}
+
+export const Head = () => <title>Blog Page</title>
+
+export default BlogPage

src/pages/index.js

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+import * as React from "react"
+// import { Link } from 'gatsby'
+import Footer from "../components/footer"
+import Header from "../components/header"
+
+const IndexPage = () => {
+  return (
+    <main>
+      <Header />
+      <div className="mx-auto max-w-screen-xl">
+        <div className="ml-7 mt-6 justify-between">
+          <h1>Welcome to my Gatsby site!</h1>
+          <p>I'm making this by following the Gatsby Tutorial.</p>
+        </div>
+      </div>
+      <Footer />
+    </main>
+  )
+}
+
+
+export const Head = () => <title>Home Page</title>
+
+export default IndexPage