CSS basic syntax and the use of selectors
How to use CSS
Inline style (Lnline Style)
Inline style: written directly in the properties of the label.
<p style="color:red;">This is an inline style display!</p>
Internal style sheet
Internal style sheet: define CSS styles in the page by adding < style > < / style > tags to < head > tags.
<head& ...
Posted by sheraz on Thu, 07 Oct 2021 17:43:53 +0200
Vue components communicate with components
First answer the questions in the previous article
1. Why don't v-for key s be indexed?
First of all, the: key is used to issue a unique identifier to v-for. It is used for performance optimization. Its value should be non duplicate and unique
If you use the index as the value of the key, when you insert another value into the array or delet ...
Posted by bweekly on Tue, 05 Oct 2021 23:54:47 +0200
Apache Web page and security optimization
1, Apache Web page optimization
1. Web page compression
The access speed of the website is determined by many factors, including the response speed of the application, network bandwidth, server performance, network transmission speed with the client and so onOne of the most important factors is the response speed of Apache itself. Therefo ...
Posted by bimmer528 on Tue, 05 Oct 2021 21:07:56 +0200
Code demonstration of image processing using Fourier transform
An example of image processing using DCT (discrete cosine) transform was introduced in the previous document:
Application of DCT/IDCT transform in image compression_ The vast majority of images in tugouxp's column CSDN blog have a common feature. Flat areas and areas with slow content change account for most of an image, while detail areas and ...
Posted by ym_chaitu on Tue, 05 Oct 2021 04:05:43 +0200
2. HTML/CSS learning notes 2 - try to write out my first web page and the concept of elements
First page
Software used: vscode
Recommended plug-ins to install in vscode:
1. Emmet plug-in: it can automatically generate HTML code fragments. It can quickly generate batches containing nested structures through tab key combined with its specific syntax. This plug-in is built-in in vscode, and I can use it directly without relevant configu ...
Posted by tinyashcities on Tue, 05 Oct 2021 02:54:18 +0200
From foundation to project (vue2.0 app actual combat)
3.1 details of component use
Detail 1:
Key: when we package tr into small components, there will be some small problems.
<body>
<div id="app">
<table>
<tbody>
<row></row>
</tbody>
</table>
</div>
<script>
Vu ...
Posted by abx_2112 on Tue, 05 Oct 2021 00:07:39 +0200
Vue Learning Notes (Horselight) (Simple Calculator)
Vue Base Code
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<script src="https://cdn.jsdelivr.net/npm/vu ...
Posted by sms.sanal on Sun, 03 Oct 2021 23:21:59 +0200
javascript Dom finishing summary
1. Get dom node
Find HTML elements by idFind HTML elements by tag nameFind HTML elements by Class nameFind HTML elements through CSS selectors
document.getElementById("#demo")
document.getElementsByTagName("demo")
document.getElementsByClassName("demo")
document.querySelectorAll("demo")
It is recommended to use query ...
Posted by CurrierSites on Sun, 03 Oct 2021 23:19:02 +0200
The back-end ideas of the dark horse tourism network project and the summary of common errors need the source code. Please send a private letter
Personally, I suggest this project is quite good. There are many places to think about Introduction to the technology and environment used
Environment configuration
Technical layer selection
Web layer Servlet Front end controller
Html View data display effect display
Filter filter
Beanutils Data encapsulation
Jackson json Serializati ...
Posted by intercampus on Sun, 03 Oct 2021 02:31:18 +0200
flex flexible box layout (detailed)
Elastic box model
1. Telescopic container display
Flex is the abbreviation of Flexible Box, meaning "flexible layout", which is used to provide maximum flexibility for box model. Any container can be specified as a flex layout.
Elements with Flex layout are called Flex containers, or "containers" for short. All its child ...
Posted by DarkShadowWing on Thu, 30 Sep 2021 23:03:35 +0200