.control_box{ width: 100%; height: 100%; position: absolute; top:0; left: 0; bottom: 0;}

/************************一个按钮 ************************/
.control_1{
	width:640px;
	height: 521px;
    background: url(../images/control_1_bg.png) no-repeat;
    background-size: 100%;
    background-image: url(./images/control_1_bg.png)\0;
    filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(
    src='./images/control_1_bg.png',
    sizingMethod='scale');
    position: absolute;
    top: 50%;
    left: 50%;
    margin-top: -260px;
    margin-left: -320px;
    }
.control_1 .bg{ 
	width: 240px;height: 240px;
	display: table; 
	background:url(../images/control_yuan_bg2.png) no-repeat;	
	background:url(../images/control_yuan_bg.png) no-repeat;
	background-size:cover;
	background-image: url(./images/control_yuan_bg.png)\0;
    filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(
    src='./images/control_yuan_bg.png',
    sizingMethod='scale');
    position: absolute;
    top: 176px;
    left: 50%;
    margin-left: -122px;
    }
.control_1 .bg:hover{
	background:url(../images/control_yuan_bg2.png) no-repeat;
	background-size:cover;
	background-image: url(./images/control_yuan_bg2.png)\0;
    filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(
    src='./images/control_yuan_bg2.png',
    sizingMethod='scale')
     -moz-transition: all .5s ease 0s;
     -webkit-transition:all .51s ease 0s; 
     transition:all .5s ease 0s; 
     -o-transition:all .5s ease 0s;
}
.control_1 .yuan_content{
	vertical-align:middle;  
    display:table-cell;
}
.control_1 .yuan_content p{
	width: 155px;
    margin: 0 auto; 
}
.control_1 .yuan_content p.title{
	text-align: center;
	font-size: 18px;
}
/*@media screen and (max-width: 1280px) {
    .control_1 {
    	width: 740px;
    	height: 602px;
        background-color:lightblue;
    }
}
@media screen and (max-width: 900px) {
    .control_1 {
    	width: 540px;
    	height: 402px;
        background-color:#f00;
    }
}*/
/************************一个按钮 END************************/

/************************二个按钮 ************************/

/************************二个按钮 END************************/