.sub_20{
			margin: 20px 0;
		}
		.sub_20 dl{
			width: 30%;
            height: 233px;
			float: left;
			margin: 1%;
            text-align: center;
		}
		.sub_20 dl dt img{
			width: 100%;
			padding-bottom: 20px;
		}
		.sub_20 dl dd{
			font-size: 1.2em; 
			background: #e8f1f6;
			padding: 3px;
			font-weight: ;
			color: #5d5d5d;
		}
		
/* tablet */
@media screen and (min-width:769px) and (max-width:991px){
}

/* mobile */
@media screen and (max-width:768px){

.sub_20 dl{
			width: 48%; 
    		height: 200px;
		}
}