*{box-sizing: border-box;}

body{
	font-family: arial;
	background-color: #eeeeee;
	color: white;
	text-align: center;
}

.logo_style {
	margin-left: 10px;
	text-align: left;
	border: none;
	color: grey;
	margin-bottom: 10px;
}



.menu_bar{
	overflow: hidden;
	background-color: grey;
}

.menu_bar a {
	float: left;
	font-size: 14px;
	color: white;
	text-align: center;
	padding: 12px 14px;
	text-decoration: none;
}

.menu_sub_list {
	float: left;
	overflow: hidden;
}

.menu_sub_list .button_sub_list {
	font-size: 14px;
	border: none;
	outline: none;
	min-width: 120px;
	color: white;
	padding: 12px 14px;
	background-color: black;
	font-family: inherit;
	margin: 0;
}


.menu_bar a:hover {
	background-color: white;
	color: black;
}

.menu_sub_list:hover .button_sub_list {
	background-color: red;
}

.content_sub_list {
	display: none;
	position: absolute;
	background-color: green;
	min-width: 120px;
	box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
	z-index: 1;
}

.content_sub_list a {
	float: none;
	color: white;
	padding: 12px 14px;
	text-decoration: none;
	display: block;
	text-align: center;
	text-size: 12px;
}

.content_sub_list a:hover {
	background-color: blue;
	color: white;
}

.menu_sub_list:hover .content_sub_list {
	display: block;
}