This article explores 6 commonly used properties of CSS. Everyone will be satisfied with this article.
1.position:static
The static attribute is the default value of position, that is, when an element does not have a position attribute set for it, Its default value is static.
2.position:absolute
This is a frequently used position attribute value. If absolute is set for an element, the element is separated from the original document flow. To put it more graphically, for example, if the a element is defined with position:absolute, then this element will not have a positional relationship with other elements on the page, but will float above the entire page. Changes in position, size, etc. of other elements on the page will not affect the position of the a element, which is equivalent to an outsider.
3.position:relative
relative is the most useful definition method. Setting the relative attribute indicates the change of the element relative to its original position. For example, we define a b element and set the following css style to it:
#b{ position: relative; width:100px; height:100px; top:100px; }
The b element defined by this code is positioned relative to the position where the position attribute is not defined. Move down 100px. The definition of the relative attribute value is such a positioning mode.
4.position:fixed
fixed positioning is not used much, but it is very suitable for partial production of fixed patterns, such as the top menu. After defining the fixed attribute, the position of the element will not change with any behavior.
5.relative+position
Using these two positions at the same time is a very common technique, and novices may also encounter a lot of trouble here. Generally speaking, if an element is absolutely positioned, its reference is based on whether the element closest to itself is set to relative positioning. If there is a setting, it will be positioned as the element closest to itself. If not, it will look to its ancestor elements for relatively positioned elements. Until html is found. For example, the following code uses a combination of the two to implement a two-column layout;
<span style="white-space:pre"> </span>#p-1 { position:relative; } #p-1a { position:absolute; top:0; rightright:0; width:200px; } #p-1b { position:absolute; top:0; left:0; width:200px; }
The two internal sub-p's will be absolutely positioned based on the element whose external positioning is relative.
6.clear:both clear float
Sometimes the positioning will collapse, that is, the child element is in the parent element, but the size of the parent element will not change. The child element is ""expanded" according to the size of the child element, resulting in the collapse effect of the parent element. This bug occurs because the child element sets the float attribute, causing the parent element to collapse. To solve this bug, you need to Set clear float for the parent element. The sample code is as follows:
<span style="white-space:pre"> </span> #p-1a { float:left; width:190px; } #p-1b { float:left; width:190px; } #p-1c { clear:both; }
The above is about learning about the six properties commonly used in CSS positioning. I hope it will be helpful to everyone.
For more articles related to CSS positioning techniques, please pay attention to the PHP Chinese website

The React ecosystem offers us a lot of libraries that all are focused on the interaction of drag and drop. We have react-dnd, react-beautiful-dnd,

There have been some wonderfully interconnected things about fast software lately.

I can't say I use background-clip all that often. I'd wager it's hardly ever used in day-to-day CSS work. But I was reminded of it in a post by Stefan Judis,

Animating with requestAnimationFrame should be easy, but if you haven’t read React’s documentation thoroughly then you will probably run into a few things

Perhaps the easiest way to offer that to the user is a link that targets an ID on the element. So like...

Listen, I am no GraphQL expert but I do enjoy working with it. The way it exposes data to me as a front-end developer is pretty cool. It's like a menu of

In this week's roundup, a handy bookmarklet for inspecting typography, using await to tinker with how JavaScript modules import one another, plus Facebook's

I've recently noticed an interesting change on CodePen: on hovering the pens on the homepage, there's a rectangle with rounded corners expanding in the back.


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

AI Hentai Generator
Generate AI Hentai for free.

Hot Article

Hot Tools

SecLists
SecLists is the ultimate security tester's companion. It is a collection of various types of lists that are frequently used during security assessments, all in one place. SecLists helps make security testing more efficient and productive by conveniently providing all the lists a security tester might need. List types include usernames, passwords, URLs, fuzzing payloads, sensitive data patterns, web shells, and more. The tester can simply pull this repository onto a new test machine and he will have access to every type of list he needs.

PhpStorm Mac version
The latest (2018.2.1) professional PHP integrated development tool

DVWA
Damn Vulnerable Web App (DVWA) is a PHP/MySQL web application that is very vulnerable. Its main goals are to be an aid for security professionals to test their skills and tools in a legal environment, to help web developers better understand the process of securing web applications, and to help teachers/students teach/learn in a classroom environment Web application security. The goal of DVWA is to practice some of the most common web vulnerabilities through a simple and straightforward interface, with varying degrees of difficulty. Please note that this software

Dreamweaver Mac version
Visual web development tools

Dreamweaver CS6
Visual web development tools