<!-- This element creates a line break --> <br> <!-- This element creates a horizontal line to divide content --> <hr>
Some HTML elements require opening and closing tags, while others are made up of a single self-closing tag, as you can see in the examples above.
A self-closing tag is made of an element’s symbol wrapped in angle brackets. It does not require a forward slash.
Elements that use self-closing tags are referred to as empty elements.
Some examples of empty elements are
Recreate the code snippet in the Demo section by typing out the code in your index.html file.
HTML basics on MDN