*{
	margin: 0px;
	padding: 0px;
	-webkit-box-sizing: border-box;
	-moz-box-sizing: border-box;
	box-sizing: border-box;
}


.background {
	top: 0px;
	width: 100%;
	height: 100%;
	position: fixed;
	background:transparent 50% no-repeat;
	background-image: url('../img/2.jpg');
	-webkit-background-size: cover;
	background-size: cover;
}

/* bar of pages scroll */

::-webkit-scrollbar {
      width: 8px;
      height: 8px;

}
::-webkit-scrollbar-track {
      background-color: rgba(0,0,0,0.1);
} 
::-webkit-scrollbar-thumb {
      background-color: rgba(0,0,0,0.2);
      border-radius: 10px 10px 10px 10px;
}
::-webkit-scrollbar-thumb:hover {
      background-color: rgba(0, 0, 0, 0.5);
            
}

::-webkit-scrollbar-button {
      /*background-color: rgba(0,0,0,0.1);*/
}
::-webkit-scrollbar-corner {
      background-color: transparent;
}

.container_menu {
    width: 100%;
    height: auto;
    position: relative;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 4em 0px;
}

.menu_content {
	top: 0px;
	width: 50%;
	min-height: 50px;
	height: auto;
	position: relative;
	background: rgba(255, 255, 255, 0.9);
	border-radius: 	10px 10px 10px 10px;
}

.menu {
	top: 0px;
	width: 	100%;
	height: auto;
	padding-left: 2em;
	padding-right: 2em;
	list-style: none;
	text-align: center;
	font-family: 'Raleway', sans-serif;
}

ul.menu li.item{
	padding: 1em; 	
	border-bottom: 1px solid #777777;
	-webkit-transition: all 500ms ease-in-out;
	-o-transition: all 500ms ease-in-out;
	transition: all 500ms ease-in-out;

}

ul.menu li.item:hover a{
	text-decoration: underline;
}

ul.menu li.item:last-child {
	border-bottom: none;
}


ul.menu li.item a{
	text-decoration: none;
	color: #777777;
	width: 100%;
	height: auto;
	position: relative;
	display: block;
}

.return {

	top: 0px;
	width: 100px;
	height: auto;
	position: fixed;
	z-index: 100;
	background: rgba(255,255,255,.9);
	border-radius: 0px 0px 10px 10px;
	font-family: 'Raleway', sans-serif;
	left: 10px;
	box-shadow: 1px 2px 20px rgba(0,0,0,0.3);

}

.return a {
	top: 0px;
	padding: .5em;
	color:  #777777;
	display: block;
	text-align: center;
	text-decoration: none;
}

.return:hover a {
	text-decoration: underline;
}

@media screen and (max-width: 1000px){

	.menu_content {
		width: 60%;
	}

}


@media screen and (max-width: 700px){

	.menu_content {
		width: 80%;
	}

	.container_menu
	{
		padding: 2.5em 0;
	}

}