What is HTML5?
HTML5 (“Hypertext Markup Language”) is a programming language, and is a system that enables custom modification for the appearance of web pages. It is also used as a custom tool to present content that is on the web. With HTML5, popular browsers such as Google Chrome, Firefox, Safari, and Explorer can read the code before loading the page, and can instantly process how to properly display the web page.
Most website builder platforms nowadays are designed so that you don’t have to touch HTML5 code making it easy to build web pages. However, sometime in certain situations some custom editing may be needed to make certain changes and this is when HTML5 knowledge can become handy. Don’t worry, most most platforms like WordPress, Shopify, etc.. have very good support and in a case when HTML5 is needed, usually the support can help out.