.environment_box01 {
	width: 618px;
	height: 164px;
	margin-top: 20px;
	}

.environment_box03 {
	width: 618px;
	height: 180px;
	margin-top: 20px;
	}

.environment_box01_left {
	width: 297px;
	float: left;
	}

.environment_box01_right {
	width: 297px;
	float: right;
	}

.environment_box02_left {
	width: 297px;
	float: left;
	}

.environment_box02_right {
	width: 297px;
	float: right;
	}