button{padding:12px 20px;margin-top:20px;font-size:16px;background-color:#0070f3;color:white;border:none;border-radius:6px;cursor:pointer;transition:background-color .3s ease}button:hover{background-color:#005bb5}@media screen and (max-width:768px){h1{font-size:22px}h1,h4{text-align:center}h4{font-size:16px}button{width:100%;font-size:14px;padding:10px 16px}}