.my-module{background-color:#f9f9f9;border:1px solid #ddd;padding:20px}.my-module h2{color:#333;font-size:24px}.my-module p{color:#666;font-size:16px}.my-module select{margin-bottom:10px;margin-right:10px}.my-module button{padding:8px 16px}.hidden{display:none}