body { font-family: sans-serif; text-align: center; background:#f5f5f5; padding:20px; }
h1,h2{color:#333;}
input,button{padding:8px; margin:5px;}
ul{list-style:none; padding:0;}
li{background:#fff; margin:3px; padding:5px; border-radius:4px;}
button{cursor:pointer;}