button {
 /*フォント*/
 font-size: 1.6em;
 font-weight: bold;
 /*余白*/
 padding: 1% 8%;
 margin: 0% 0% 1% 1%;
 /*影*/
 text-shadow: 2px 2px 3px #000;
 /*色*/
 color: #fff;
 background: -moz-linear-gradient(bottom, #f92, #fb9 50%, #f92);
 /*角を丸く*/
 border-radius: 10px;
}