帮我解释一下这段代码<body> <input type="checkbox" id="check" /> <label for="check"> <svg viewBox="0 0 30 30" width="30" height="30"> <path id="one" d="M4 10h22M4" stroke="#fff" stroke-width="2" stroke-linecap="round"></path> <path id="two" d="M4 20h22M4" stroke="#fff" stroke-width="2" stroke-linecap="round"></path> </svg> Click me </label> <aside> <div class="top"> <h2>Title</h2> <ul> <li>Nav text</li> <li>Nav text</li> <li>Nav text</li> <li>Nav text</li> <li>Nav text</li> </ul> </div> <div class="bottom"> <p>© 2019 by Andrej Sharapov</p> </div> </aside> <article> <div class="wrapper"> <div class="content"> <h1>Off-Canvas menu on Pure CSS</h1> <p>Lorem ipsum dolor sit amet consectetur adipisicing elit. Provident rerum unde porro consequatur doloribus ex distinctio similique, voluptas repellendus voluptates nam dolorum! Repudiandae maxime, itaque vero dolorem distinctio inventore explicabo!</p> <p>Odio eaque cum blanditiis esse, earum saepe voluptate quae aliquid possimus facere non qui illo necessitatibus eveniet ab sit quaerat. Atque animi nulla veritatis molestiae qui ipsam ut assumenda facilis?</p> </div> <div class="footer"> <p>Follow me <a href="https://twitter.com/andrejsharapov" target="_blank" title="">in Twitter</a></p> </div> </div> </article> </body>