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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11327

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 17632

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 11338

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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How can I eliminate the small white space between the navigation bar and the next section? How to get rid of the little gray space on hover selector?

I'm coding this website as the final project for my HTMl course on freecodecamp and I'm running into two errors that I don't know how to fix. On one hand, I have a little white line between my navigation bar and the first section. On the other hand, I use the hover selector to make the background of the navigation bar link gray but still keep a small dark line at the bottom. The white lines look like this: To fix the first white line, I tried removing the padding and margin (this removed some of the white space on the edges, but not the remaining white space between the two parts. I also added all the CSS background Change to blue to find out which part is filled

2024-02-25 22:54:59

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

PHP full text search functionality using AND, OR and NOT operators

Newbie question: I'm trying to implement a full text search on a search string using php and eloquent. $searchstring="+(victimsuspect)+crime-covid";$searchresult=RssItem::whereRaw("MATCH(description)AGAINST('$searchstring'INBOOLEANMODE)")->ge

2023-09-05 15:06:32

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Maicong G75 series three-mode mechanical keyboard is on sale for the first time: Gasket structure, single-key slotted PCB, starting from 99 yuan

Course Introduction：According to news from this website on May 31, the Maicong G75 series three-mode mechanical keyboard will go on sale on JD.com at 8 o'clock tonight. This mechanical keyboard adopts Gasket structure, with four types of shafts available. The first release comes with "Arctic Snow Keycaps" ", the price information compiled by this site is as follows: G75 Yungu White: Green axis, priced at 99 yuan G75 Crystal Black: Burgundy axis, priced at 149 yuan G75Pro Twilight White/Qingyu Blue: Cabbage Tofu axis V2, priced at 199 yuan G75Pro Spar Black/Iceland Blue: Cabbage Tofu Switch V2, priced at 229 yuan. G75Pro Twilight White/Qingyu Blue/Qinglan White: Matcha Latte Switch V2, sold at 249 yuan. According to reports, the keyboard adopts Gasket structure and has five layers of noise elimination. Filling, equipped with slotted PC positioning plate and 1.2mm single key slotted PCB, can

2024-06-06 comment 0 1121

Due to copyright ownership issues, Softstar Technology, the developer of 'Legend of Sword and Fairy', launched a new LOGO

Course Introduction：According to news from this site on August 13, the official website of "Legend of Sword and Fairy" announced yesterday that due to copyright issues with the original LOGO, the developer Softstar Technology will launch a new LOGO on August 12. The new LOGO inherits the classic blue and white stripe elements, and changes the five-pointed star into a planet, breaking out of the frame, implying unlimited creativity and more possibilities. The English softstar was renamed softstarlight, which means the continuous release of starlight. The original LOGO of Softstar Technology is attached to this site as follows. You can see that the pattern of the new LOGO has undergone major changes, but it still uses the blue and white color scheme. The "Legend of Sword and Fairy" series of stand-alone games is a classic memory of a generation, and the latest seventh generation has been launched. In June last year, it was reported that multiple development teams of Softstar Technology had been disbanded.

2024-08-13 comment 0 480

RØDE SC27 two-meter color data cable released: C to C interface, 5Gbps transmission, 100 yuan

Course Introduction：According to news from this site on March 26, microphone brand RØDE released a SC27 data cable with colorful colors, a cable length of 2 meters, and a price of 100 yuan. The SC27 is a USB-C to USB-C data cable that is said to be specially designed for connecting devices that require fast data transfer speeds to your computer. It is 2 meters long, supports up to 5Gbps transmission speeds and 60W power delivery, and is available in a variety of colors, including black, orange, red, purple, pink, green and blue. In addition, Rode has launched the following new color variants of USB cables, including black, orange, red, purple, pink, green and blue. The attached information on this site is as follows: SC17USB-C to USB-C Data Cable (1.5m) Domestic Official selling price: 150 yuan

2024-03-26 comment 0 1046

New HMD mobile phone unveiled! Adopts bright colors similar to Nokia Lunia

Course Introduction：Recently, HMD Global CEO Jean Francois Baril announced that the company will launch its own brand of HMD mobile phones. And the name of Nokia's social account and website has been changed to HumanMobileDevices (HMD). Now, the website has been partially updated. HMD website design update HMD’s updated website design features images of the phone in three bright colorways: blue, green, pink. These colors and design schemes are reminiscent of the bright, solid color designs of Nokia’s Lumia phones. According to the website, the new HMD phones will come in these bright colors. However, it's unclear whether HMD will adopt these colorways on future devices. fenye worth mentioning: blue phone discovery

2024-08-21 comment 0 631

How to set all elements under div in jquery

Course Introduction：Recently, I encountered a problem when developing a website: How to use jQuery to set all elements under a certain div? On my website I have a div that contains several p, h2 and a tags. I want to set the color of p to red and the color of h2 and a to blue using jQuery. To achieve this, I first need to select this div and then use jQuery selectors to select all elements within it and set their color to the corresponding value. first

2023-04-17 comment 0 645

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