Hi @hamzeto.

• There are some spelling mistakes in your article e.g. thier ( their). You use that spelling over and over again. It's "Pixabay", not "Pixelbay".
• if you need to quote a definition from any website, use quote. You can do this by inserting the symbol > and then write the definiton. It should looks like this:

A video game is an electronic game that involves interaction with a user interface to generate visual feedback on a video device such as a TV screen or computer monitor.

If you have any problem regarding STEM-related articles, you can join steemSTEM Discord Channel and we will be glad to assist you.