understanding flexbox

Flexbox implements a DIV element that is horizontally vertically centered on the body page:Flexbox CSS layout for horizontal vertical centering

First, the theory:1.flex-flowA.flex-direction setting the telescopic flow direction of the telescopic containerB.flex-wrap setting a scaling item in a telescopic container if there is not enough space in the telescopic container, whether the scaling item is wrapped in a telescopic container2.flex-packA. With the same parameters as the Box-pack propertyB.distribute scaling items are evenly distributed across the same lineThe starting edge of the first telescopic project in the C.start telescopic

: #efefef;}. Content ul Li. file-icon{position:absolute; Background:url (".. /img/file.png ") No-repeat Center; Background-size:1.2rem 1.2rem; Width:1.2rem; Height:1.2rem; Left:1rem; Top:.3rem;}. Content ul Li. file-name{position:absolute; Line-height:2rem; Left:3.2rem;}. t{Display:none;} #upper {position:absolute;right:15px;top:5px;color:blue;} #log {width:200px; height:30px; color:red; Float:right;} /* Redefine icon position */.trash:before{Display:block;

Common Example 1. Center Alignment"Utf-8"> class="Flex-container"> class="Flex-item">1class="Flex-item">2class="Flex-item">3class="Flex-item">4class="Flex-item">5class="Flex-item">6Effect:2. Adaptive navigation 　　Effect:Align vertically with center"Utf-8"> class="content"> isExtremely difficult to vertically align contentusingTraditional CSS without knowing exactlywhereYou want the item to appear. Typical page layouts for blog posts"Utf-8"> class="Post"> isMy first blog postclass="Post-meta">

React native, through a flexbox layout engine, implements a consistent cross-platform style and layout across all mobile platforms. Main Properties Flex flexdirection alignself alignitems justifycontent flexwrap Properties explain Flex When an element defines a flex attribute, it means that the element is scalable (Flex has a property value greater than 0 to scale) and can be likened to the weight property in Android. Class Flexboxrea

First, in the React Native Flexbox has Flex:1 its child elements have the same length Justifycontent Vertical Layout Alignitems Horizontal Layout Flexdirction row (Landscape) Colum (portrait) Overall direction Justifycontent (The relationship between child elements and child elements) Flex-start Center Flex-end space-around Space-between Sub- Alignitems determines the position of your control in the vertical left or right of the screen Flex-start (lef

(1) preliminary understanding and understanding of Maven; preliminary understanding of maven Apache Maven is a comprehensive tool for software project management. Based on the concept of the project Object Model (POM), it provides methods to help manage building, documents, reports, dependencies, and releases, Maven simplifies and standardizes the project constru

Deep understanding of CSS positioning full understanding of relative and absolute positioning of CSS positioning, deep understanding of css In fact, both the standard stream and floating stream are very understandable, that is, positioning is not very easy to understand, especially relative and absolute positioning. Many of the first students are hard to distingu

xTable of Contents [1] version change [2]display [3] Basic concept [4] telescopic container [5] in front of the telescopic projectCSS3 introduces a new layout model--flex layout. Flex is the abbreviation for flexible box, commonly referred to as the elastic box model. Unlike CSS3 other properties, Flexbox is not an attribute, but a module, including multiple CSS3 properties. Flex layouts provide a more efficient way to project the layout of items with

[An in-depth understanding of javascript prototype and closure series] It took half a month to complete the draft, seek recommendations, and gain an in-depth understanding of javascript As you can see from the following directory, this series has 16 articles, plus two supplemented articles, a total of 18 articles. It was written for half a month and started in December September 17. When every article is up

Deep understanding of OOP (2): Polymorphism and inheritance (inheritance), deep understanding of oop This article is the second article of OOP, mainly about inheritance. Deep understanding of OOP (1): Polymorphism and inheritance (polymorphism during initial binding and compilation) Deep understanding of OOP (2): Po

Deep understanding of OOP (first day): Polymorphism and inheritance (initial binding and compilation polymorphism), deep understanding of oop In this series, we mainly use the popular OOP blogs on CodeProject to provide in-depth and simple presentation of OOP.As a master of software design or a cainiao, architecture design requires many restructures and trade-offs to facilitate the healthy construction of t

An in-depth understanding of the sequence of the javascript series, an in-depth understanding of javascript Starting from today, the bloggers will conduct in-depth understanding and analysis of javascript and organize some of their learned knowledge into blog posts for everyone to learn and discuss together. If you have any questions or suggestions, contact the

ASP. NET is a very powerful platform for building Web applications. It provides great flexibility and capabilities that can be used to build all types of Web applications, as ASP. NETProgramPersonnel, should have a deeper understanding of its working principles. This period of time in the domestic and foreign network for verification and understanding to summarize, collect and sort out and when the programC

In the previous article, we discussed what a schema is. In fact, these basic concepts are very important for architecture, and most people think they are aware of the concepts they are accustomed to every day, but in fact they are subconscious and not active. For example, "What is a table?" "When I do training, I often take this example to ask you, answer all sorts of strange things." This actually led to the structure of the time, the different roles of communication will be a lot of problems,

Transferred from: http://kb.cnblogs.com/page/539838/In the previous article, we discussed what a schema is. In fact, these basic concepts are very important for architecture, and most people think they are aware of the concepts they are accustomed to every day, but in fact they are subconscious and not active. For example, "What is a table?" "When I do training, I often take this example to ask you, answer all sorts of strange things." This actually led to the structure of the time, the differen

A few months ago, I happened to see Meng's blog, and after reading it, unlike a deeper understanding of the matrix. Now let's summarize and share. "According to current international standards, linear algebra is expressed by axiomatic, it is the second generation mathematical model, ..., which brings about teaching difficulties." "In fact, when we started to learn linear algebra, unknowingly entered the" second-generation Mathematical model "category

@ Translation: Huangyongye Original link: Understanding Lstm Networks Foreword : Actually before already used lstm, is in the depth study frame Keras to use directly, but to the present to LSTM detailed network structure still does not understand, the heart is worried about is uncomfortable. Today, read the TensorFlow document recommended this blog, after reading this, beginnings Dawu, the structure of lstm unders