@media screen and (max-width: 720px){
	.contenthr{
		width: 90%;
		margin-left: 5%;
		margin-right: 5%;
		height: 3px;
		background-color: #2d4b1e;
	}
	
	.gray_contenthr{
		width: 90%;
		margin-left: 5%;
		margin-right: 5%;
		height: 3px;
		background-color: #777;
	}
}

@media screen and (min-width: 721px){
	.contenthr{
		width: 648px;
		margin-left: auto;
		margin-right: auto;
		height: 3px;
		background-color: #2d4b1e;
	}
	
	.gray_contenthr{
		width: 648px;
		margin-left: auto;
		margin-right: auto;
		height: 3px;
		background-color: #777;
	}
}

	.hr100{
		width: 100%;
		margin-left: 0%;
		margin-right: 0%;
		height: 3px;
		background-color: #2d4b1e;
	}
	
	.gray_hr100{
		width: 100%;
		margin-left: 0%;
		margin-right: 0%;
		height: 3px;
		background-color: #777;
	}