How to introduce external css files in uniapp-uni-app-php.cn

How to introduce external css files in uniapp

PHPz

Release： 2023-04-18 14:52:55

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With the continuous development of front-end technology, more and more developers are beginning to use uni-app for cross-platform development. One of the essential functions is to introduce external CSS files to better customize the style of the page. So, how should we introduce external CSS files in uni-app? This article will introduce you in detail one by one.

1. Introduce external CSS files into the Vue component

In uni-app, we can use Vue components to build pages. Therefore, we can introduce external CSS files directly into the Vue component.

First, create a new CSS file, such as styles.css, in the root directory of the project. Next, in the Vue component that needs to introduce CSS, use the import statement to introduce the CSS file:

<template>
  <!-- your template code here -->
</template>

<script>
  import '@/styles.css'
  // your script code here
  export default {
    name: 'your-component-name'
  }
</script>

<style scoped>
  /* your component's style code here */
</style>

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In the above code, we first introduced the styles.css file through the import statement, and then in the script of the Vue component Use this style in tags. It should be noted that since scoped styles are used in Vue components, the styles in styles.css will only be applied to the current component.

2. Introduce external CSS files into HTML pages

In addition to using external CSS files in Vue components, we can also introduce them directly into HTML pages. This method is suitable for situations where you need to share the same style among multiple Vue components.

First, we also need to create a new CSS file in the root directory of the project, such as styles.css. Next, use the link tag to introduce the CSS file in the HTML page:

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>My uni-app project</title>
  <link rel="stylesheet" href="/styles.css">
</head>
<body>
  <div id="app"></div>
  <script src="/uni.js"></script>
</body>
</html>

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In the above code, we use the link tag to introduce the styles.css file and place it in the head tag. It should be noted that the path in the href attribute here is relative to the project root directory.

In addition, if we need to introduce the CSS library of the external CDN link, we can also introduce it directly in the HTML page:

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>My uni-app project</title>
  <link rel="stylesheet" href="https://cdn.bootcss.com/bootstrap/4.3.1/css/bootstrap.min.css">
</head>
<body>
  <div id="app"></div>
  <script src="/uni.js"></script>
</body>
</html>

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In the above code, we use the CDN link of Bootstrap, and Introduce it into the HTML page through the link tag.

Summary

In uni-app, we can customize the style of the page by introducing external CSS files into the Vue component or HTML page. There are two methods of introduction: using the import statement in the Vue component or using the link tag in the HTML page. At the same time, we can also introduce CSS libraries linked to external CDNs. I hope this article can help you introduce CSS files into uni-app.

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