Home Web Front-end CSS Tutorial CSS Layout Guidelines

CSS Layout Guidelines

Jun 14, 2020 pm 06:38 PM
1

1.1 水平居中布局

效果图如下:

image.png

方案一. inline-block + text-align

分析:display设置为inline-block的元素,具有文本元素的性质,其父元素可以通过设置文本对齐属性text-align来控制其在行内的对齐方式,text-align: center即为水平对齐

注意:text-align属性是具有继承性的,会导致自己元素内部的文本也是居中显示的,需要自身设置text-align覆盖


   


       

   

方案二. 定位 + transform

分析:父元素开启定位(relative,absolute,fixed都可以)后,子元素设置绝对定位absolute后,left设置为50%,再使用transform: translateX(-50%)将子元素往反方向移动自身宽度的50%,便完成水平居中。

注意:父级元素是否脱离文档流,不影响子元素水平居中效果,但是transform是css3属性,存在浏览器兼容问题


   


       

   

方案三. display: block + margin: 0 auto

分析:这个方法只需要对子元素进行设置就可以实现水平居中,margin设置auto表示浏览器会自动分配,实现来外边距等分效果。

注意:这里子元素设置display为block或者table都是可以的,如果子元素脱离文档流(浮动,定位),会导致margin属性的值无效。


   


       

   

1.2 垂直居中布局

效果图如下:

image.png

方案一. 定位 + transform

这种方案和之前水平居中布局的方案二是同样的原理,不在赘述


   


       

   

方案二. display: table-cell + vertical-align

分析:设置display: table-cell的元素具有td元素的行为,它的子元素布局方式类似文本元素,可以在父元素使用vertical-align: middle;实现子元素的垂直居中。

注意:vertical-align属性具有继承性,导致父元素内文本也是垂直居中显示的。


   


       

   

1.3 水平垂直居中布局

效果图如下:

image.png

前面分别总结了一些水平居中和垂直居中的布局方式,那么进行水平垂直居中的布局,也就没什么特别要说的了,直接上代码:

方案一.定位 + transform


   


       

   

方案二. 结合水平布局方案三,垂直布局方案二


   


       

   

1.4 Use flex for centered layout

Analysis: Using flex, horizontal and vertical centering will become very easy. By default, align-items: center Vertically centered (cross-axis arrangement), justify-content: center horizontally centered (main-axis arrangement) Note: Browser compatibility issues need to be considered.



;


;

;


The above is the detailed content of CSS Layout Guidelines. For more information, please follow other related articles on the PHP Chinese website!

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

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

AI Hentai Generator

AI Hentai Generator

Generate AI Hentai for free.

Hot Article

R.E.P.O. Energy Crystals Explained and What They Do (Yellow Crystal)
2 weeks ago By 尊渡假赌尊渡假赌尊渡假赌
Hello Kitty Island Adventure: How To Get Giant Seeds
1 months ago By 尊渡假赌尊渡假赌尊渡假赌
Two Point Museum: All Exhibits And Where To Find Them
1 months ago By 尊渡假赌尊渡假赌尊渡假赌

Hot Tools

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

Demystifying Screen Readers: Accessible Forms & Best Practices Demystifying Screen Readers: Accessible Forms & Best Practices Mar 08, 2025 am 09:45 AM

This is the 3rd post in a small series we did on form accessibility. If you missed the second post, check out "Managing User Focus with :focus-visible". In

Create a JavaScript Contact Form With the Smart Forms Framework Create a JavaScript Contact Form With the Smart Forms Framework Mar 07, 2025 am 11:33 AM

This tutorial demonstrates creating professional-looking JavaScript forms using the Smart Forms framework (note: no longer available). While the framework itself is unavailable, the principles and techniques remain relevant for other form builders.

Adding Box Shadows to WordPress Blocks and Elements Adding Box Shadows to WordPress Blocks and Elements Mar 09, 2025 pm 12:53 PM

The CSS box-shadow and outline properties gained theme.json support in WordPress 6.1. Let's look at a few examples of how it works in real themes, and what options we have to apply these styles to WordPress blocks and elements.

Working With GraphQL Caching Working With GraphQL Caching Mar 19, 2025 am 09:36 AM

If you’ve recently started working with GraphQL, or reviewed its pros and cons, you’ve no doubt heard things like “GraphQL doesn’t support caching” or

Making Your First Custom Svelte Transition Making Your First Custom Svelte Transition Mar 15, 2025 am 11:08 AM

The Svelte transition API provides a way to animate components when they enter or leave the document, including custom Svelte transitions.

Show, Don't Tell Show, Don't Tell Mar 16, 2025 am 11:49 AM

How much time do you spend designing the content presentation for your websites? When you write a new blog post or create a new page, are you thinking about

Classy and Cool Custom CSS Scrollbars: A Showcase Classy and Cool Custom CSS Scrollbars: A Showcase Mar 10, 2025 am 11:37 AM

In this article we will be diving into the world of scrollbars. I know, it doesn’t sound too glamorous, but trust me, a well-designed page goes hand-in-hand

What the Heck Are npm Commands? What the Heck Are npm Commands? Mar 15, 2025 am 11:36 AM

npm commands run various tasks for you, either as a one-off or a continuously running process for things like starting a server or compiling code.

See all articles