.tab1{
	background: url("../img/servizi-menu.png");
	height:100%;
    padding: 0;
	-webkit-background-size: cover;
	-moz-background-size: cover;
	-o-background-size: cover;
	background-size: cover;
    background-position: center;
}
.tab2{
	background: url("../img/ambiti-menu.png");
	height:100%;
    padding: 0;
	-webkit-background-size: cover;
	-moz-background-size: cover;
	-o-background-size: cover;
	background-size: cover;
    background-position: center;
}
.tab3{
	background: url("../img/formazione-menu.png");
	height:100%;
    padding: 0;
	-webkit-background-size: cover;
	-moz-background-size: cover;
	-o-background-size: cover;
	background-size: cover;
    background-position: center;
}
.full-colomnu{
    background: rgba(100, 100, 100, 0.2);
	height: 100%;
    width: 100%;
	transition: .4s;
}
.full-colomnu.hover{
    background: rgba(0, 132, 182, 0.2);
}
.centerBlock{
	background: rgba(34, 34, 34, 0.75);
	color: #fff;
    position: absolute;
	font-size:1.4em;
	letter-spacing: 0.1em;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
	text-transform: uppercase;
}
.centerBlock.arrowHover{
	background: rgba(34, 34, 34, 1);
}
.centerBlock .text{
	display: inline-block;
	padding: 0.85em 0.5em 0.85em 0.5em;
	transition: .3s;
	letter-spacing: 1px;
	font-weight: 400;
	width: 9.5em;
    text-align: center;
}
.centerBlock .arrow{
	opacity: 0;
	transition: .4s;
	display: inline-block;
	padding: 1em 0em;
    background: rgba(255, 52, 52, 0.8);
	height: 100%;
	margin:0;
}
.centerBlock.arrowHover .arrow{
	opacity: 1;
	padding: 1em 0.5em;
}
.centerBlock .arrow img{
	height:0%;
	margin:0;
	transition: .2s;
}
.centerBlock.arrowHover .arrow img{
	height:3%;
}
.navbar-brand{
	padding:15px 15px 15px 25px;
}

/*FIREFOX*/
.centerBlock .arrow, x:-moz-any-link, x:default{
	width:0;
	float: right;
}
.centerBlock .arrow img, x:-moz-any-link, x:default{
	height: 0%;
	width: 0%;
}
.centerBlock.arrowHover .arrow, x:-moz-any-link, x:default{
	width:21%;
	float: right;
}
.centerBlock.arrowHover .arrow img, x:-moz-any-link, x:default{
	height:100%;
	width:100%;
}
/*FIREFOX*/

@media only screen and (max-width : 1350px){
	.centerBlock.arrowHover .arrow{
		padding: 1.1em 0.1em;
	}
}
@media only screen and (max-width : 1250px){
	.centerBlock .arrow{
		background: yellow;
	}
	.centerBlock.arrowHover .arrow{
		display: none;
	}
}