Webpages can be created by using HTML source code that makes up a Web view which is made up of HTML tags. The same goes for content creation because the content is made up of rich elements such as headings, tables, lists, indentation, and other rich elements. Not everybody has experience with HTML to create content; to solve this problem, WYSIWYG editors come into play.
In the olden days of the internet, web design involved complicated coding that could be understood by skilled programmers. When WYSIWYG was invented, webpage development and content creation became so easy that coding is not essentially needed. This editor automatically reflects the final result when changes are being made on the screen.