Web Front-end
CSS Tutorial
Parse the difference between relative and absolute in position of css
Parse the difference between relative and absolute in position of css
position has the following attributes: static, inherit, fixed, absolute, relative
The first three are easy to understand and distinguish:
static : is the default state, no positioning, the element appears in the normal flow (ignoring top, bottom, left, right or z-index statement).
nherit: Inherit the value of the position attribute from the parent element .
fixed: Generate absolutely positioned elements, positioned relative to the browser window. (That is, when scrolling the browser, the element is always displayed at a certain position in the visible area of the window).
Absolute and relative are more commonly used and may confuse beginners. What is the difference between them?
1. Let’s first look at the concept given by W3C
absolute: Generate an absolutely positioned element and position it relative to the first parent element other than static positioning.
relative: Generates relatively positioned elements, positioned relative to their normal position.
The core difference between the two is that absolute is not affected by other elements in the parent element, while relative is affected by other elements in the parent element.
2. Understand the difference between absolute and relative with one picture
Code:
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title></title>
<style>
html,body,div,p{
margin: 0;
padding: 0;
}
#baba {
position: absolute;
left: 50px;
top:50px;
width: 300px;
height: 300px;
background: blue;
}
#baba p{
background:lightblue;
}
#erzi {
position: absolute;
left: 50px;
top:50px;
width: 200px;
height: 200px;
background: yellow;
}
</style>
</head>
<body id="body">
<div id="baba">
<p></p>
<div id="erzi">
<p></p>
</div>
</div>
<script>
var baba=document.getElementById("baba"),
erzi=document.getElementById("erzi");
baba.children[0].innerHTML="我是"+baba.id;
erzi.children[0].innerHTML="我是"+erzi.id;
</script>
</body>
</html>The above is the detailed content of Parse the difference between relative and absolute in position of css. For more information, please follow other related articles on the PHP Chinese website!
Hot AI Tools
Undresser.AI Undress
AI-powered app for creating realistic nude photos
AI Clothes Remover
Online AI tool for removing clothes from photos.
Undress AI Tool
Undress images for free
Clothoff.io
AI clothes remover
Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!
Hot Article
Hot Tools
Notepad++7.3.1
Easy-to-use and free code editor
SublimeText3 Chinese version
Chinese version, very easy to use
Zend Studio 13.0.1
Powerful PHP integrated development environment
Dreamweaver CS6
Visual web development tools
SublimeText3 Mac version
God-level code editing software (SublimeText3)
Hot Topics
1655
14
1413
52
1306
25
1252
29
1226
24
Google Fonts Variable Fonts
Apr 09, 2025 am 10:42 AM
I see Google Fonts rolled out a new design (Tweet). Compared to the last big redesign, this feels much more iterative. I can barely tell the difference
How to Create an Animated Countdown Timer With HTML, CSS and JavaScript
Apr 11, 2025 am 11:29 AM
Have you ever needed a countdown timer on a project? For something like that, it might be natural to reach for a plugin, but it’s actually a lot more
HTML Data Attributes Guide
Apr 11, 2025 am 11:50 AM
Everything you ever wanted to know about data attributes in HTML, CSS, and JavaScript.
How to select a child element with the first class name item through CSS?
Apr 05, 2025 pm 11:24 PM
When the number of elements is not fixed, how to select the first child element of the specified class name through CSS. When processing HTML structure, you often encounter different elements...
Why are the purple slashed areas in the Flex layout mistakenly considered 'overflow space'?
Apr 05, 2025 pm 05:51 PM
Questions about purple slash areas in Flex layouts When using Flex layouts, you may encounter some confusing phenomena, such as in the developer tools (d...
A Proof of Concept for Making Sass Faster
Apr 16, 2025 am 10:38 AM
At the start of a new project, Sass compilation happens in the blink of an eye. This feels great, especially when it’s paired with Browsersync, which reloads
In front-end development, how to use CSS and JavaScript to achieve searchlight effects similar to Windows 10 settings interface?
Apr 05, 2025 pm 10:21 PM
How to implement Windows-like in front-end development...
How We Created a Static Site That Generates Tartan Patterns in SVG
Apr 09, 2025 am 11:29 AM
Tartan is a patterned cloth that’s typically associated with Scotland, particularly their fashionable kilts. On tartanify.com, we gathered over 5,000 tartan
