Web pages are TEXT files. Text files consist ONLY of ABC's and 123's. No special, weird-looking codes exist in text files. Binary files DO contain special characters. That was a corrupted alphabet, numbers, and basic punctuation in them.
ALL computers understand and can interpret text files.
To write web pages, you need a text editor. Windows comes with one called, Notepad. All files saved with Notepad are saved as text files. You can use a word processor like Microsoft Word to create text files, but it is a bit more complicated. Three terms you need to know are web site, web page, and home page.