#main_area {
	background-image: url(../img/key.jpg);
}
.privacy_txt {
	clear: both;
	padding-left: 50px;
}
.privacy_txt li {
	font-weight: 100;
	font-size: 80%;
	line-height: 130%;
	margin-bottom: 10px;
	background-image: url(../../common/img/arrow02.gif);
	background-repeat: no-repeat;
	background-position: left 5px;
	padding-left: 10px;
}
@media only screen and (max-width: 640px) {
	#main_area {
		-webkit-background-size: cover;
		background-size: cover;
	}	
	.privacy_txt {
		padding-left: calc((50/760)*100vw);
	}
	.privacy_txt li {
		font-weight: 100;
		font-size: calc((24/760)*100vw);
		line-height: 1.7;
		margin-bottom: calc((15/760)*100vw);
		-webkit-background-size: calc((10/760)*100vw);
		background-size: calc((10/760)*100vw);
		background-position: left calc((10/760)*100vw);
		padding-left: calc((15/760)*100vw);
	}
}