#aboutus {
	width: 100%;
	position: relative;
	text-align: center;
}

.aboutus_content {
	margin: 0 auto;
}

@media only screen and (min-width: 1086px) {
	.aboutus_content {
		width: 1085px;
		text-align: center;
	}
	.aboutus_content img {
		width: 790px;
		margin: 0 auto;
	}
}

@media only screen and (max-width: 1085px) {
	.aboutus_content {
		width: 90%;
	}
	.aboutus_content img {
		width: 790px;
		margin: 0 auto;
	}
}

@media only screen and (max-width: 640px) {
	.aboutus_content {
		width: 100%;
	}
	.aboutus_content img {
		width: 100%;
		margin: 0 auto;
	}
}