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This article introduces the 'definition and usage' + 'attribute effect' of CSS overflow attribute in detail No more nonsense, just go to the code and Legend (in order to make it easy for everyone to read, we all have some pictures of our own verification process to share). I overflow definition and usage: 1. overflow Property specifies what ...

Map and WeakMap Characteristics and creation of Map type To understand Map, first look at the objects. Compare the objects to learn about Map. For an object, the key in the object can only be a string!! let obj = { 1:'lihuina', "1":"lhn" } console.log(obj); //{1: "lhn"} When defining an object, although ...

Hello, fellow students! When Xiaobian was learning the front end, he accidentally heard the concept of pseudo class. It doesn't matter. What matters is that I forgot how to use pseudo class and pseudo element. After reviewing it again, I want to share this part of the content: Pseudo class Both pseudo classes and pseudo elements belong to ...

Status of CSS3: 1.CSS3 new selector 1.1 attribute selector 1. The attribute selector can select elements according to the specific attributes of elements without the help of class or id selector 2. Match the above selector: ^Means to select the beginning, $select the end, * select any name <style> /* 1.It must be input, b ...

Tio. Introduction to JavaIn order to reduce the time for users to find APIs, t-io collects common APIs into a class in the form of static methods, which is TiO javaTio.java itself does not implement complex services, and the business implementations are still distributed in other classes, TiO Java just centralizes the API s that users care abou ...

advantage 1. Separation of content and performance 2. The web page structure is unified and can be reused 3. Very rich styles 4. It is recommended to use css files independent of html 5. Using SEO, it is easy to be included by search engines Template Flying ice, template home grammar Each declaration ends with a semicolon Selector{ S ...

Floating layout Basic introduction Floating layout is one of the most commonly used layout methods in the early days of CSS. To put it bluntly, it is a technical means to float elements out of the default document flow arrangement. The following points should be noted when using floating layout: Floating should occur inside a large box (th ...

catalogue 1.1 two dimensional coordinate system 1.2 movement of 2D conversion 1. Syntax: 2 . a key: 3. Center a box horizontally and vertically 1.3 rotation of 2D conversion 1. Syntax: 2. Key points: 3. Rotate the case and write the triangle with code: 1.4 transform origin of 2D conversion center point 1. Syntax: 2. Key points: 3. ...

1. CSS composite selector The descendant selector is also known as the include selector. You can select the child elements of the parent element (li is the child of ol). Element 1 and element 2 must be separated by spacesDescendant selectors can be a combination of basic selectorsThe child selector can only select the nearest child eleme ...

1, Implementation steps The detailed explanation can be seen from the deep sea of the up main designer of station B "Motionless" . Here I will briefly describe it. In short, there are three steps: Draw three identical images as like as two peas. Change the colors of the three images in the order of left, middle and right, as sho ...