<html><head><meta name="viewport" content="width=device-width, initial-scale=1"><style>.button { background-color: #ddd; border: none; color: black; padding: 10px 20px; text-align: center; text-decoration: none; display: inline-block; margin: 4px 2px; cursor: pointer; border-radius: 16px;}.button:hover { background-color: #f1f1f1;}</style></head><body><h2>胶囊按钮</h2><button class="button">胶囊按钮1</button><button class="button">胶囊按钮2</button></body></html>