The Great Gatsby: Using CSS to incorporate a background image

After reviewing the Gatsby documentation, it appears that referencing background images is done in a similar manner to other CSS properties:

.image {
  background-image: url(./image.png);
}

However, one aspect not addressed is the specific location where these images should be stored. Despite trying various directories such as the src folder, layout folder, and root folder, I consistently encounter the following error message:

Loader /Users/username/Sites/my-app/node_modules/url/url.js?{"limit":10000,"name":"static/[name].[hash:8].[ext]"} didn't return a function
 @ ./~/css-loader!./~/postcss-loader!./src/layouts/index.css 6:400-435

Therefore, I am seeking clarification on the correct method for referencing a background image within Gatsby.

Current directory structure:

my-app
- src
-- images 
--- image.png
-- layouts
--- index.css

Answer №1

Typically, I organize my component-specific images alongside their respective JSX and CSS files, while storing general or global images in a designated images folder. Here is an example structure I might use:

.
├── components
│   ├── button.jsx
│   ├── button.module.scss
│   └── button_icon.png
└── images
    └── logo.png

When referencing button_icon.png from button.module.css, I follow this format:

background-image: url("./button_icon.png");

Similarly, to reference logo.png from button.module.css, I would use the following:

background-image: url("../images/logo.png");

Recently, I have been utilizing Emotion for my Gatsby projects, which requires a modified approach. The same concept can be applied with StyledComponents or Glamor as well:

import background from "images/background.png"
import { css } from "@emotion/core"

// Object styles:
<div css={{ backgroundImage: `url(${background})` }} />

// Tagged template literal styles:
const backgroundStyles = css`
  background-image: url(${background});
`
<div css={backgroundStyles} />

Answer №2

In order to properly display images in your project, you will need to create a static folder separate from the src folder.

Your project structure should look something like this:

my-app 
- src
-- components
--- styles.scss
- static
-- images
--- image.png

To reference the image in your styles.css or scss file, simply use:

background: url('/images/image.png');

Alternatively, if you want to access the image in one of your jsx/js files, you can import withPrefix from Gatsby:

import { withPrefix } from 'gatsby';
<div style={{ backgroundImage: `url(${withPrefix('/images/image.png')})` }} />

Answer №3

Ensure that the path you define is accurate and relative to the location of your CSS file in order to properly link to the desired images. Depending on your file structure, the path could resemble something similar to

background-image: url('../../imageGallery/amazingPhotos/scenery.jpg');

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