Images

Importing assets with webpack

  1. Import an image into the home page of the site and display it.

    src\pages\index.js

    import { graphql, Link } from "gatsby"
    import React from "react"
    import Layout from "../components/layout"
    import { PageTitle } from "../components/page-title"
    + import homePagePhoto from "../images/home-page-photo.jpeg"
    export default function Home({ data }) {
    return (
    <Layout>
    <PageTitle>Home</PageTitle>
    - <img src="https://source.unsplash.com/600x300/?house" alt="house" />
    + <img
    + className="rounded-md shadow-md"
    + style={{ width: "600px", height: "300px" }}
    + src={homePagePhoto}
    + alt="corporate,office,building"
    + />
    ...
    <p className="mt-6">
    ...
    </p>
    ...
    </Layout>
    )
    }
    ...

  2. Import an image for the about page and display it.

    src\pages\about.js

    import React from "react"
    import Layout from "../components/layout"
    import { PageTitle } from "../components/page-title"
    + import aboutPhoto from "../images/about-photo.png"
    export default function About() {
    return (
    <Layout>
    <PageTitle>About</PageTitle>
    + <img
    + className="rounded-md shadow-md"
    + style={{ width: "600px", height: "300px" }}
    + src={aboutPhoto}
    + alt="corporate building"
    + />
    - <p>
    + <p className="mt-6">
    ...
    </Layout>
    )
    }

  3. Import the logo image into the header component and display it.

    First remove the bottom-padding on the header element (pb-10).

    src\components\header.js

    - <header className="pt-5 col-start-1 col-end-3 border-b-2 border-solid border-gray-600">
    + <header className="pt-5 col-start-1 col-end-3 border-b-2 border-solid border-gray-600 pb-10">
    import React from "react"
    import { useStaticQuery, graphql, Link } from "gatsby"
    + import acmeLogo from "../images/acme-logo.png"
    export const NavLink = ({ children, to }) => {
    ...
    }
    export default function Header() {
    const data = useStaticQuery(graphql`
    query {
    site {
    siteMetadata {
    title
    }
    }
    }
    `)
    return (
    <header className="col-start-1 col-end-3 border-b-2 border-solid border-gray-200 flex flex-row justify-start ">
    - <Link to="/" className="text-4xl mx-4 flex justify-self-start">
    - {data.site.siteMetadata.title}
    - </Link>
    + <img src={acmeLogo} alt="Acme Logo" />
    <nav className="pt-4 pr-80 flex flex-row justify-end min-w-full">
    <NavLink to="/">Home</NavLink>
    <NavLink to="/about">About</NavLink>
    </nav>
    </header>
    )
    }

  4. Remove the background-color on the body element because the logo background is white. We could have given the logo a transparent background but this will work for now.

    src\styles\global.css

    @tailwind base;
    @tailwind components;
    @tailwind utilities;
    - body {
    - @apply bg-gray-100;
    - }

Using the Gatsby Image plugin

  1. Install the following packages:

    npm install gatsby-plugin-image gatsby-plugin-sharp gatsby-source-filesystem gatsby-transformer-sharp

  2. Add the plugins to your gatsby-config.js:

    gatsby-config.js

    module.exports = {
    siteMetadata: {
    title: `Acme Inc.`,
    description: `A corporate site`,
    },
    plugins: [
    {
    resolve: `gatsby-source-filesystem`,
    options: {
    name: `src`,
    path: `${__dirname}/src`,
    },
    },
    `gatsby-transformer-remark`,
    `gatsby-plugin-emotion`,
    "gatsby-plugin-postcss",
    + `gatsby-plugin-image`,
    + `gatsby-plugin-sharp`,
    + `gatsby-transformer-sharp`,
    ],
    }

  3. Replace the main <img> in the home page with a <StaticImage> from the Gatsby image plugin.

    src\pages\index.js

    ...
    - import homePagePhoto from "../images/home-page-photo.jpeg"
    + import { StaticImage } from "gatsby-plugin-image"
    ...
    <PageTitle>Home</PageTitle>
    - <img
    - className="rounded-md shadow-md"
    - style={{ width: "600px", height: "300px" }}
    - src={homePagePhoto}
    - alt="corporate,office,building"
    - />
    + <StaticImage
    + imgClassName="rounded-md shadow-md"
    + placeholder="blurred"
    + loading="eager"
    + width={600}
    + height={300}
    + src="../images/home-page-photo.jpeg"
    + alt="corporate office building"
    + />
    ...

  4. Throttle the network in Chrome DevTools's Network tab to see a blurred home page image initially load.

    Try some other placeholder settings from the documentation.

  5. In header.js, style the navigation to the right and the logo to the left using flexbox.

    src\components\header.js

    <header className="... flex flex-row justify-start pr-80 ">
    <nav className="... flex flex-row justify-end min-w-full">

  6. If time permits, replace the main <img> in the about page (src\pages\about.js) with a <StaticImage> from the Gatsby image plugin using the last step as an example.

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