@media only screen and (max-device-width: 720px) {
	body {
		margin: 0; padding: 0;
		width: 100%;
		background-color: #eee;
	}

	#top_menu {
		margin: 0; padding: 0;
		margin-left: -1px;
		border-top: 1px solid #bbb;
		border-bottom: 1px solid #bbb;
	}

	#left_menu {
		float: left;
		width: 200px;
		min-height: 100%;
	}

	.sub_menu {
		margin: 0; padding: 0;
	}

	.article_page {
		display: inline-block;
		width: 100%;
		margin: 0; padding: 0;
	}

	#auth_form {
		display: block;
		position: absolute;
		margin: 0; padding: 0;
		top: 88px;
		left: 6px;
		z-index: 1;
	}

	div.grafic {
		display: none;
		margin: 0; padding: 0;
	}

	#toTop {
		width: 80px;
		height: 80px;
		position: fixed;
		bottom: 10px;
		left: 10px;
		cursor: pointer;
		display: none;
		z-index: 1;
	}
}

/*******************************************************************************************/

@media only screen and (max-device-width: 480px) {
	body {
		margin: 0; padding: 0;
		width: 100%;
		background-color: #eee;
	}

	#top_menu {
		margin: 0; padding: 0;
		margin-left: -1px;
		border-top: 1px solid #bbb;
		border-bottom: 1px solid #bbb;
	}

	#left_menu {
		float: left;
		width: 200px;
		min-height: 100%;
	}

	.sub_menu {
		margin: 0; padding: 0;
	}

	.article_page {
		display: inline-block;
		width: 100%;
		margin: 0; padding: 0;
	}

	#auth_form {
		display: none;
	}

	div.grafic {
		display: none;
		margin: 0; padding: 0;
	}

	#toTop {
		width: 80px;
		height: 80px;
		position: fixed;
		bottom: 10px;
		left: 10px;
		cursor: pointer;
		display: none;
		z-index: 1;
	}
}