如何更改button的样式

button{

background:#F0F0F0 repeat-x;

padding-top:3px;

border-top:1px solid #708090;

border-right:1px solid #708090;

border-bottom:1px solid #708090;

border-left:1px solid #708090;

width:80px;

height:auto;

font-size:10pt;

cursor:hand;

}

按钮