Preface One of the most common solutions on the Internet is to relative in the parent element, and then absolute in the child element. This solution is certainly good, but one disadvantage is that it will change the hierarchical relationship of elements. If used in multiple places, such a cascading and nested relationship will be very confusing. This article will temporarily abandon that solution and share with you several CSS background image positioning solutions. 1. Dependency-free absolute positioning On the Internet, there is a misunderstanding about absolute positioning. It is believed that the use of absolute positioning absolute must set the relative positioning of the parent element relative. This understanding cannot be considered wrong, it can only be said that the definition is not fully understood. Absolute is defined in the W3C document like this: generate an absolutely positioned element and position it relative to the first parent element other than static positioning. The position of the element is specified through the 'left', 'right', 'bottom' and 'top' attributes. The understanding of this sentence should be as follows (L: left, R: ri
1. Summary of common methods of positioning background images using CSS
Introduction: Preface One of the most common solutions on the Internet is to use relative in the parent element, and then absolute in the child element. This solution is of course good, but. One disadvantage is that it will change the hierarchical relationship of elements. If used in multiple places, such a cascading and nested relationship will be very confusing. This article will temporarily abandon that solution and share with you several CSS background image positioning solutions. . 1. Dependency-free absolute positioning
##2. Introduction to using CSS to position background images
##Introduction: These small pictures are the parts after the whole picture is divided. Each part is placed on one picture instead of being stored as separate pictures. The purpose is that we all You know, it is to reduce the number of http requests and save time and bandwidth. So how to display only part of a picture in different places, this uses the positioning of the background image that we are going to talk about today. I believe there are many problems. Everyone has been depressed, and friends often ask me, so today I will explain it systematically:
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Introduction to the use of CSS positioning
Introduction: This article describes the use of CSS positioning
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Simple implementation code for using CSS to position waterfall flow
#Introduction: This article introduces the use of CSS to position waterfall flow Simple implementation code
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Detailed introduction to the three CSS positioning regular, floating and absolute positioningIntroduction: This article describes the three CSS positioning regular, floating, and absolute positioning in detail
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CSS positioning Position techniquesIntroduction: This article mainly explores the common techniques for CSS positioning, CSS There are indeed many things that need to be carefully considered about the position and other attributes. This article will explore them with you
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Pure HTML5+CSS3 to make a birthday cake (the code is easy to understand)Introduction: Without further ado, let me show you the renderings: the cake is divided into three parts, the bottom cake, the top cake and the candle part. The layout structure of HTML is also laid out according to these three parts. The other is to use CSS positioning and CSS3 rotate, inner and outer shadows and other effects to adjust the styles of some DOM elements. It's relatively simple, I believe all coders understand it. I won’t go into details about the others. The complete HTML code and CSS code are given below< 8. CSS-BFC (Block Formatting Context) #Introduction: I didn’t know what BFC was before, but after reading it today, I realized that I had been exposed to it often before, but I didn’t know the professional name. Just like closures and inheritance, they were often used before, but I just didn’t know it. Today I will talk about BFC of CSS positioning. 9. css positioning z-index problem
##Introduction: css positioning z-index problem
Introduction: css positioning [Related Q&A recommendations]: html - How to implement css positioning How are the red messages below WeChat positioned in different mobile phone widths
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