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javascript - How to select text background color after adding ID in front of ::selection, how to make it compatible with browsers?

Select text background color {code...} When <html id="c-1">, {code...} only works on Firefox, but not on Google Chrome. I tried {code...} .} is of no use either. The desired effect is that when replacing the ID in HTML, the background color of the selected text will also be r...

给我你的怀抱 2017-05-19 10:36:57

objective-c - iOS 模拟器中图片颜色比原始图片颜色深，如何获取原始UIImage？

环境：Xcode 7 + iOS9 模拟器问题：使用IB方式构建UI设置图片的时候，发觉模拟器中UIImageView中的图片颜色比原始图片颜色深。而我希望得到的是原始图片的效果。新建了一个Demo，只放了一个ImageView。图片颜色...

高洛峰 2017-04-25 09:04:33

javascript - Help with canvas drawing mosaic problem, color selection is always inaccurate

When drawing with the mouse, I take the color value of the current area of the mouse, and then set the color of the brush. However, the color selection is always very different. I don’t know if there is something wrong with my calculation. Please help! {code...}

三叔 2017-06-08 11:03:00

php - The browser fails to access the socket server program as a client?

It is normal to write a socket client program to access it. It is also normal to use telent to access it. However, when the browser accesses it as a client, it directly reports an error and does not enter the while loop at all. Why is this? The browser accesses the 127.0.0.1:8899 server program dire...

世界只因有你 2017-05-16 13:03:22

CSS Color Variables - Rules or selectors are required when defining CSS colors

Hello, I'm having the following problem: "At-rule or selector is required when defining CSS colors." I'm using VS Code and I have the following problem: https://jigsaw.w3.org/css-validator/validator#css Checked the CSS and I don't know where the problem is! /*ColorVariables*/$red:red;$gree...

P粉021708275 2023-09-13 11:02:07

php - How to access the web project in the Linux virtual machine under Windows

I put the project on a Linux virtual server and it can be accessed on the virtual machine. I want to access it on Windows. What should I do? I have opened port 80 in the firewall, but I still cannot access it. It can be accessed in the virtual machine, but the server can be accessed by entering the ...

phpcn_u1582 2017-05-31 10:33:43

Getting emulator errors

I've been trying to reverse engineer a GBA emulator (https://gba.44670.org/) that I found online and using an HTML extractor to try to replicate it. I wanted it to work offline, so I downloaded all the scripts to my computer and ran them there. However, after this, the "Select File" button...

P粉447495069 2023-09-01 20:53:31

php - Get intranet server data

The company wants to install an ERP system, which will be deployed on the server in our own computer room. However, we also want to get some order data from this server. Should we ask the other party to provide a data interface or some other method? To capture intranet data through the Internet, whi...

漂亮男人 2017-05-16 13:06:06

How can IIS server prohibit external network access to phpmyadmin?

How can the iis server prohibit external network access to phpmyadmin? Thank you!

phpcn_u42988 2017-10-13 22:02:37

docker - 获取一个容器的退出时间

请问如何获取一个容器的退出时间？ docker 1.10版本增加了这个参数： docker ps -a --format "{{.CreatedAt}}" ，我现在能获取准确的创建时间。

大家讲道理 2017-04-24 15:59:26

What software does the teacher use that can extract colors and measure pixels?

What software does the teacher use that can extract colors and measure pixels?

⁺正号⁺ 2018-07-19 20:11:39

java - Does ehcache cache use virtual machine memory?

Does ehcache cache use virtual machine memory or other memory? Is the bottom layer of ehcache map? How does he implement caching?

大家讲道理 2017-06-23 09:13:46

When accessing the URL for Shenma browser, it says that the request was denied? ?

When accessing the URL for Shenma browser, it says that the request was denied? ?

ipanda 2018-01-25 20:13:25

docker - 两个容器之间是互通的，但是容器不能访问外部网络

容器之间能相互ping通，但是 ping www.baidu.com ping不通，不能访问外网

PHPz 2017-04-27 09:02:01

tomcat - 为什么无法从阿里云服务器访问任何的redis?

在阿里云上部署了一个项目, 使用tomcat容器与redis缓存(在CentOS服务器上), 而当我们启动服务的时候, 却无法访问我们现有的任何服务器的redis, 而在本地开发环境中启动的服务却可以访问. 已经做了以下工作: ping...

给我你的怀抱 2017-04-27 09:02:59

How to get the browser viewport size

I want my visitors to be able to see high quality images, is there any way to detect the window size? Or better yet, the browser's viewport size using JavaScript? See the green area here:

P粉237029457 2023-08-28 11:06:30