.banner{ background:url(../img/banner_bg.jpg) no-repeat; height:252px;position: relative;}
.banner a{ color:#fff;}
.box1-inner{
   position: absolute;
    top: 48px;
    left: 84px;
    background: url(../img/icon_1bg.png) no-repeat;
    height: 108px;
    line-height:30px;
    width: 119px;
    transition: 1s;
    cursor: pointer;
    animation: swing ease-in-out .3s infinite alternate;
    transform-origin: top;
    transform-box: fill-box;}
.inner_1{ 
	position: absolute; 
	margin: 14px auto;
	font-size: 24px;
	color: #fff; 
	top:7px; 
	left:34px; 
	width:60px; 
	height:60px; }
.box2-inner{
	position: absolute;
    top: 60px;
    left: 204px;
    background: url(../img/icon_2bg.png) no-repeat;
    height: 88px;
    width: 95px;
    transition: 1s;
    cursor: pointer;
    animation: swing ease-in-out .3s infinite alternate;
    transform-origin: top;
    transform-box: fill-box;}
.inner_2{ 
	position: absolute;
    margin: 14px auto;
    font-size: 20px;
    line-height: 24px;
    color: #fff;
    top: 5px;
    left: 26px;
    width: 52px;
    height: 52px;}
.box3-inner{
	position: absolute;
    top: 124px;
    left: 153px;
    background: url(../img/icon_3bg.png) no-repeat;
    height: 95px;
    width: 105px;
    transition: 1s;
    cursor: pointer;
    animation: swing ease-in-out .3s infinite alternate;
    transform-origin: top;
    transform-box: fill-box;}
.inner_3{ 
    position: absolute;
    margin: 14px auto;
    font-size: 22px;
    line-height: 28px;
    color: #fff;
    top: 3px;
    left: 31px;
    width: 60px;
    height: 60px;}	
.box4-inner{
	position: absolute;
    top: 158px;
    left: 87px;
    background: url(../img/icon_4bg.png) no-repeat;
    height: 85px;
    width: 93px;
    transition: 1s;
    cursor: pointer;
    animation: swing ease-in-out .3s infinite alternate;
    transform-origin: top;
    transform-box: fill-box;}
.inner_4{ 
	position: absolute;
    margin: 14px auto;
    font-size: 20px;
    line-height: 25px;
    color: #fff;
    top: 5px;
    left: 26px;
    width: 50px;
    height: 50px;}	
/*************swing************/
@keyframes swing {
    0% { transform: rotate(8deg); }
    100% { transform: rotate(-8deg); }
}