HTML coding is used for making documents designed to be showed in the web browser.
Here are some examples:
<samp> The samp tag is used to tell apart different sample outputs in a computer program.
<kbd> This is used to define keyboard inputs.
<var> This one is used to define a variable in programming. What ever is inside of it is displayed in italics.
<body> The body tag defines the documents body.
<br> Puts in a single break in the lines.
<html> The html tag defines the html document.