As others suggested, the general principles of writing and reading online is similar across countries. Use colors pleasant to the eye that won't stress the brain so much, don't have long paragraphs and use more images as they are remembered better and for longer. However, there are some tricks of the trade that are language-specific. For example, you use longer and more descriptive sentences in Russian (if you have ever read Russian literature, you notice that). In Chinese, I believe, these rules might be even more prominent. The best way to learn these rules is to read texts in the language you are writing in. You will then pick up these details (consciously and unconsciously) for your own writing practice.
The first factor that should direct your writing in any language is who you are writing it for and what's the purpose of the text. Work from there and use your knowledge of human behavior to guide you along the way. Good Luck!