The basic structure of HTML always starts with a document type declaration: `<!DOCTYPE html>`
You will need to add the `<html>` tag after the document type and close it with a `</html>` tag. This will be your actual HTML document.
The first element you will insert in your HTML will be the `<head>` tag that will contain all metadata from the website such as its title, styles, links and other elements. This element needs to be closed with a `</head>` tag.
The visible part of your HTML lies within the `<body>` tag which will be inside the `<html>` tag, and will also need to be closed with a `</body>` tag.
Below you can see the structure of a basic HTML file: