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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11302

Course Introduction："Self-study IT Network Linux Load Balancing Video Tutorial" mainly implements Linux load balancing by performing script operations on web, lvs and Linux under nagin.

Shangxuetang MySQL video tutorial

Course Advanced 17615

Course Introduction："Shangxuetang MySQL Video Tutorial" introduces you to the process from installing to using the MySQL database, and introduces the specific operations of each link in detail.

Band of Brothers front-end example display video tutorial

Course Advanced 11321

Course Introduction："Brothers Band Front-end Example Display Video Tutorial" introduces examples of HTML5 and CSS3 technologies to everyone, so that everyone can become more proficient in using HTML5 and CSS3.

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Modifying nginx configuration file to change the website root directory is invalid?

CentOS6.4 64-bit, nginx is 1.10.1, I only need to display html static pages. The original website root directory is /usr/local/nginx/html and I need to change it to /srv/www/. The following is the content of the nginx.conf file {code ...} It will not take effect after saving and service nginx restart. The root directory of the website is still...

2017-05-16 17:16:14

How to use CSS selectors to target div elements containing specific attributes or tags?

I'm working on a POS system that generates a website. Most of the code is proprietary so I can't edit much. I have an output list of categories with some images floated as categories. I want to hide the first 3 listed on the home page. I tried positioning the containing div using div:nth-child(1), which works, but each child page also hides them. Unfortunately, all non-home pages only have a class added in the body and main div, so I can't do it by category id or style or by page. What I have is the same image tag on every page. So I tried with

2024-04-03 22:25:59

Ways to fix issue 2003 (HY000): Unable to connect to MySQL server 'db_mysql:3306' (111)

I recently tried to containerize my FastAPIPython server (also for replication/doubling purposes). Before, I had just a MySQL server in a Docker container and everything was fine, but when I also made my web server a service, it couldn't connect to the MySQL server, so now the application doesn't work. Below is the code snippet of the server database initialization connector in the application fromfastapiimportFastAPIimportmysql.connectorapp

2023-09-05 11:18:47

Experiment with sorting after query limit

So this is my first question here, please forgive me if something is wrong. I'm trying to make a sort query based on constraints. So there is a Customers table with 90 records. I want to first perform a query limited to 3 records, and then sort the results of this query by a column called ContactName. I think this might be a nested query. Nested queries run fine in SQLServer, but don't know how to implement it in MySQL. Limit query: Select*fromcustomerslimit

2023-09-05 14:46:42

CSS Grid: Create new row when child content overflows column width

I have a two column layout based on CSS grid. When the content of the second column exceeds 1fr I want to create a new row. As it currently stands, the content simply overflows the column. One requirement of this layout is that the items in the right menu column are in one row. I achieve this with: .right-menu{...grid-auto-flow:columndense;...} If I remove the grid-auto-flow attribute, the overflow stops. However, the items are now stacked into multiple rows, which is not what I want. I also tried converting .ri

2023-09-05 15:18:28

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html5 common tags and attributes

Course Introduction：HTML5 tags create rich websites, including headers (<header>), navigation (<nav>), content blocks (<article>), and modal dialog boxes (<dialog>). Properties are used to enhance semantics and functionality, such as unique identifiers (id), CSS classes (class), submission names (name), and placeholders (placeholders).

2024-04-21 comment 0 641

How to Extract Visible Webpage Content Using BeautifulSoup?

Course Introduction：How to Scrape Visible Webpage Content EffectivelyWeb scraping involves extracting specific data from web pages, but it can be challenging to limit...

2024-11-25 comment 0 508

How to correctly use block-level elements and inline elements to achieve web page layout effects

Course Introduction：How to correctly use block-level elements and inline elements to achieve web page layout effects. When laying out web pages, we often use block-level elements and inline elements. Block-level elements and inline elements are two basic element types in HTML, and they play different roles in web page layout. This article will introduce in detail how to correctly use block-level elements and inline elements to achieve web page layout effects, and provide specific code examples. 1. Characteristics and application scenarios of block-level elements Block-level elements have the following characteristics: Each block-level element will occupy its own line, that is, it will wrap automatically. block level element

2024-01-07 comment 0 610

HTML, CSS and jQuery: Techniques for implementing image page turning effects

Course Introduction：HTML, CSS and jQuery: Tips for implementing image flipping effects In modern web design, image flipping effects are a common and popular element. Through image switching and transition effects, web pages can be made more dynamic and attractive. This article will introduce how to use HTML, CSS and jQuery to implement image page turning effects, and provide specific code examples. HTML structure First, create a container in HTML to wrap the content of the image, and set a unique ID so that it can be used in CSS and jQu

2023-10-26 comment 0 1589

What does display mean in css

Course Introduction：The display attribute in CSS controls the layout of elements on the web page. Its meaning: inline: elements are arranged inline, flowing with the text. block: Elements are arranged at a block level, occupying an exclusive row and occupying the width. inline-block: combines the inline and block features, arranges inline but can set the size. none: hide the element. Flex: Use flexible layout to automatically adjust the size and position of elements. grid: Use grid layout to precisely control element position and size.

2024-04-28 comment 0 650

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