<!doctype html> <html> <head> <meta charset="utf-8" /> <link rel="stylesheet" href="./../../reset.css"> <link rel="stylesheet" href="./button.css"> </head> <body> <div style="padding: 10px; background-color: gray;"> <button class="btn">Button</button> <br><br> <button class="btn blue">Button</button> <br><br> <button class="btn green">Button</button> <br><br> <button class="btn red">Button</button> <br><br> <button class="btn white">Button</button> </div> </body> </html>