/* -----------------------------------
   Computer
----------------------------------- */
.grid_1{width:6.5%;}
.grid_2{width:15%;}
.grid_3{width:23.5%;}
.grid_4{width:32%;}
.grid_5{width:40.5%;}
.grid_6{width:49%;}
.grid_7{width:57.5%;}
.grid_8{width:66%;}
.grid_9{width:74.5%;}
.grid_10{width:83%;}
.grid_11{width:91.5%;}
.grid_12{width:100%;}

.grid_1, .grid_2, .grid_3,
.grid_4, .grid_5, .grid_6,
.grid_7, .grid_8, .grid_9,
.grid_10, .grid_11, .grid_12{
	margin:0 2% 1% 0;
	float:left;
	display:block;
}

.alpha{margin-left:0;}
.omega{margin-right:0;}

.container{
	width:100%;
	max-width:1000px;
	margin:auto;
}

#oil .first{
	margin-left:0;
	width:44%;
	margin-right:6%;
}
#oil .second{
	margin-right:0;
	width:44%;
}

/* clearfix */
.clear{
	clear:both;
	display:block;
	overflow:hidden;
	visibility:hidden;
	width:0;
	height:0;
}
.clearfix:after{
	clear:both;
	content:' ';
	display:block;
	font-size:0;
	line-height:0;
	visibility:hidden;
	width:0;
	height:0;
}
* html .clearfix,
*:first-child + html .clearfix{
	zoom:1;
}

@media screen and (max-width:800px){
	#oil .first,
	#oil .second{
		width:100%;
		clear:left;
	}
}

/* -----------------------------------
   Mobile
----------------------------------- */
@media screen and (max-width:480px){
	body{
		padding:0 2% 0 2%;
	}
	.grid_1, .grid_2, .grid_3,
	.grid_4, .grid_5, .grid_6,
	.grid_7, .grid_8, .grid_9,
	.grid_10, .grid_11, .grid_12,
	.grid_6 .first, .grid_6 .second{
		clear:left;
		width:100%;
	}
	.grid_12 .container{
		max-width:100%;
	}
	dt,dd{
		clear:both;
		margin-left:0;
		width:100%;
	}
}