How to use rem layout in vue

Using REM layout in Vue can keep the layout responsive and avoid pixel distortion. Specific steps include: setting the root font size; using REM units in element styles; and implementing responsive layout through media queries. Advantages include: responsiveness, ease of maintenance, and avoidance of pixel distortion. Notes are to only set a root font size, avoid using REM units for line height or spacing, and consider using a CSS preprocessor.

Using REM layout in Vue

Using REM layout in Vue can not only make the layout respond to different device screen sizes, but also avoid The problem of pixel distortion at different resolutions.

Basic Concept

REM (Root Element Media Query) is a CSS unit whose value is relative to the font size of the root element (html).

How to use REM layout in Vue

1. Set the root font size

Set the root font size in the :root selector. For example:

<code class="css">:root {
  font-size: 10px;
}</code>

2. Use REM units

Use REM units instead of px units when defining element styles. For example:

<code class="css">.container {
  width: 30rem;
  height: 20rem;
}</code>

3. Responsive layout

By using media queries, you can set the root font size under different screen sizes to achieve responsive layout. For example:

<code class="css">@media (min-width: 768px) {
  :root {
    font-size: 12px;
  }
}</code>

Advantages

• Responsiveness: REM layout can automatically adapt to different device screen sizes, ensuring the smoothness and consistency of the layout.
• Easy to maintain: Since font size is relative, when you need to adjust the layout, you only need to modify the root font size.
• Avoid pixel distortion: REM layout can avoid pixel distortion because the size of the elements will not be affected when the pixel density of different devices is different.

Note

• Make sure to set only one root font size in your project.
• Do not use REM units for line height or spacing, as this may cause inconsistent spacing.
• Consider using a CSS preprocessor (such as Sass or LESS) to simplify the implementation of REM layout.

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