Home > Web Front-end > CSS Tutorial > How Does Vertical Alignment Actually Work in CSS?

How Does Vertical Alignment Actually Work in CSS?

DDD
Release: 2024-11-07 05:01:02
Original
549 people have browsed it

How Does Vertical Alignment Actually Work in CSS?

Vertical Alignment in CSS: Understanding the Nuances

The vertical-align property allows you to position an inline element vertically within its parent element. However, its behavior can be unpredictable unless you grasp the underlying principles.

Inline Elements and Height

Vertical-align only affects inline elements. Elements such as

and <div> are block-level and not affected. For inline elements without an inherent line height, such as and , you need to explicitly set one using the line-height property.

Height and Vertical Alignment

The parent element's height must have a static value (i.e., not auto or percentage). If the height is not specified, the browser will calculate it based on the content, which can lead to unexpected results.

Positioning Inline Elements

Contrary to text-align, which applies to the block-level containing element, vertical-align should be applied to the inline element you want to position.

Browser Differences

Older browsers may not support vertical-align consistently. Modern browsers, however, handle it well, even when used on non-inline elements.

Example: Centering Text

For instance, suppose you have the following HTML:

<div>
Copy after login

To center the text vertically in #inner, apply vertical-align: middle to #header:

#header {
  display: inline-block;
  line-height: 1em;
  margin: 0;
  vertical-align: middle;
}
Copy after login

Note that in this example, #inner is an inline-block element with a fixed height.

The above is the detailed content of How Does Vertical Alignment Actually Work in CSS?. For more information, please follow other related articles on the PHP Chinese website!

source:php.cn
Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Popular Tutorials
More>
Latest Downloads
More>
Web Effects
Website Source Code
Website Materials
Front End Template