<html><title>W3.CSS</title><meta name="viewport" content="width=device-width, initial-scale=1"><link rel="stylesheet" href="https://www.w3schools.cn/w3css/4/w3.css"><body><div class="w3-container"> <h2>Light Green Color</h2> <div class="w3-container w3-light-green"> <p>Light Green container</p> </div> <p class="w3-light-green">Light Green paragraph</p> <button class="w3-btn w3-light-green">Light Green Button</button></div></body></html>