盖茨比:使用CSS设置背景图片

问题描述

通过查看Gatsby文档，他们建议您可以像在其他任何地方一样引用背景图片:

Looking at the Gatsby docs, they suggest that you can reference background images like you would anywhere else:

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

这些图片不应该包含在其中.我尝试将图像目录放置在src文件夹，布局文件夹和根文件夹中，但是仍然出现错误:

What they don't cover is where these images should live. I've tried placing the image directory in the src folder, in the layout folder, and in the root folder, but I keep getting the error:

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

使用Gatsby引用背景图像的正确方法是什么?

What's the proper way to reference a background image using Gatsby?

当前目录结构:

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

推荐答案

通常，我将组件特定的图像以及它们的JSX和CSS文件以及常规/全局图像保存在images文件夹中，所以我可能具有这样的结构:

Generally I keep component-specific images alongside their JSX and CSS files and general/global images in an images folder, so I might have a structure like this:

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

要引用button.module.css中的button_icon.png，我会这样做:

To reference button_icon.png from button.module.css I would do this:

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

要从button.module.css引用logo.png，我会这样做:

And to reference logo.png from button.module.css I would do this:

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

---

更新:最近，我在我的Gatsby项目中一直使用 Emotion ，这需要一种略有不同的方法.这也适用于StyledComponents或Glamour:

---

Update: Lately I've been using Emotion with my Gatsby projects, which requires a slightly different approach. This would work 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} />

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