How to implement css dynamic modification through uniapp

As mobile operating systems continue to be updated and evolved, developers are constantly looking for and exploring more efficient development methods. Among them, uniapp, as a cross-platform framework, has high development efficiency and excellent user experience, and has become the tool of choice for many mobile application developers. In the actual development process, we often need to modify the user interface, and dynamic modification of CSS is also a common requirement. This article will introduce how to dynamically modify css through uniapp.

1. The use of css in uniapp

In uniapp, css is used to set the style of the page. We can control the page layout and visual effects by writing style code in the page tag. The following is a simple example:

<template>
  <view class="container">
    <view class="title">Hello World</view>
    <view class="content">这是一段文字</view>
  </view>
</template>

<style>
  .container {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background-color: #f5f5f5;
  }
  .title {
    font-size: 24px;
    margin-bottom: 20px;
  }
  .content {
    font-size: 16px;
    color: #666;
  }
</style>

In the above example, we set .container and .title# through the