.border-left{
	border-left:1px solid #ccc ;
}
.border-right{
	border-right:1px solid #ccc ;
}
.rotate{

    transform-origin:center center; //旋转中心要是正中间 才行

    transform: rotate(180deg);

    -webkit-transform: rotate(180deg);

    -moz-transform: rotate(180deg);

    -ms-transform: rotate(180deg);

    -o-transform: rotate(180deg);

    transition: transform 0.5s; //过度时间 可调

    -moz-transition: -moz-transform 0.5s; 

    -moz-transition: -moz-transform 0.5s; 

    -o-transition: -o-transform 0.5s; 

    -ms-transition: -ms-transform 0.5s; 
	position: relative;
	top: -1px;
}
.pa15{
	padding: 15px;
}
.btn-default {
    color: #333;
    background-color: #f0f0f0;
}
.btn-default:hover {
    color: #fff;
    background-color: #666;
    border-color:transparent;
}