<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>Margin and Padding exercise</title> <link rel="stylesheet" href="solution.css"> </head> <body> <div class="one"> DIV ONE </div> <div class="two"> DIV TWO </div> <div class="three"> DIV THREE </div </body> </html>