color: #fff;
background-color: #f9a123;
background-image: -moz-linear-gradient(top, #f89406, #fbb450);
background-image: -webkit-gradient(linear, 0 0, 0 100%, from(#f89406), to(#fbb450));
background-image: -webkit-linear-gradient(top, #f89406, #fbb450);
background-image: -o-linear-gradient(top, #f89406, #fbb450);
background-image: linear-gradient(to bottom, #f89406, #fbb450);
background-repeat: repeat-x;
filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#fff89406', endColorstr='#fffbb450', GradientType=0);
border-color: #fbb450 #fbb450 #f89406;
border-color: rgba(0, 0, 0, 0.1) rgba(0, 0, 0, 0.1) rgba(0, 0, 0, 0.15);
效果：
