In this article, I will share with you some very useful HTML tips. Enjoy! But first, what is HTML? Hypertext Markup Language (HTML) is the standard markup language for documents designed to be displayed in a web browser. It can be assisted by technologies such as Cascading Style Sheets (CSS) and scripting languages such as JavaScript. Let’s start! Performance tip. You can use the loading=lazy attribute to defer the loading of the image until the user scrolls to them.