JSFiddle - React, Tailwind, and code Playground by David Santiago November 26, 2018 HTML <!DOCTYPE html> <html> <head> </head> <body> <h2>Button Colors</h2> <p>Change the background color of a button with the background-color property:</p> <button class="colorButton button5"></button> </body> </html> CSS .colorButton { border: none; color: white; padding: 15px 15px; text-align: center; text-decoration: none; display: inline-block; font-size: 16px; margin: 4px 2px; cursor: pointer; border-radius: 12px; } .button2 {background-color: #000000;} /* Blue */ .button3 {background-color: #f44336;} /* Red */ .button4 {background-color: #e7e7e7; color: black;} /* Gray */ .button5 {background-color: #555555;} /* Black */