timg | A terminal image and video viewer | Command Line Interface library

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I've removed margin from all body sides. But as you can see the right margin is still there(in white). I've tried to set my navbar and front margin to 0 as well but nothing is working. The html and css code is provided below. I'm creating this website as a sample for my portfolio but there is a blank space on the right side and also on the bottom. I have no idea what is causing the space. I have tried changing all the margins to 0 and use only paddings but nothing is helping. I have tried to open the file in different browsers too but nothing. I'm new to coding and also new to stackoverflow. Your help will be much appreciated. Thanks.

Below is my css:

I'm trying to separate my input loop from my game logic in my simple snake game that I've made with pygame, but, I'm really struggling to figure out why nothing is happening when I run the program.

I've tried importing pygame in the subprocess, I checked for errors on the subprocess, and got nowhere. I looked on google, but I wasn't able to find any usable examples, or similar issues. Has anybody ever figured any of this stuff out?

Okay, here's the code:

To begin, I am a complete novice in OpenCV and am beginner/reasonable in c++ code. But OpenCV is new to me and I try to learn by doing projects and stuff.

Now for my new project I am trying to find the centre of square in a picture. In my case there is only 1 square in picture. I would like to build further upon the square.cpp example of OpenCV.

For my project there are 2 things I need some help with,

1: The edge of the window is detected as a square, I do not want this. Example

2: How could I get the centre of 1 square from the squares array?

This is the code from the example "square.cpp"

This is driving me crazy:

With the help of @Tanaike(see here), I can successfully upload files to GoogleDrive by using php-curl, here is my code by using php-curl: