.active {
	background-color: #0000FF;
}
.ink {
	width: 238px;
	height: 30px;
	display: block;
	position: absolute;
	transform: scale(0);
	-webkit-transform: scale(0);
	background-color: #0000FF;
}
.ink.animate {
	animation: ripple 0.65s linear;
}
@keyframes ripple {
	100% {
		opacity: 0;
		transform: scale(2.5);
	-webkit-transform: scale(2.5);
	}
}
.nav{
	width: 1200px;
	margin: 0 auto;
	right: 0px;
	left: 0px;
	height: 50px;
	position: relative;
	z-index: 999;
	
	background-color: #0066FF;
}
.nav_table{
width: 100%;
height: 50px;
display: block;
overflow: hidden;
}
.nav_table_cell{
height: 50px;
line-height: 50px;
width: 130px;
display: inline-block;
float: left;

}
.nav_table_cell_link{
height: 50px;
line-height: 50px;
width: 130px;
text-align: center;
display: inline-block;
position: relative;	
cursor: pointer;
z-index: 2;
background: transparent;
color: #FFFFFF;
border-right: 1px solid #000;
overflow: hidden;
}
.nav_table_cell_link span{
	width: 239px;
	height:0px;
	display: block;
	position: absolute;
	z-index: -1;
	margin-left: 1px;
	background-color: #0033FF;
}
.nav_active:before{
	content: '';
	height:10px;
	width:130px;
	display: block;
	position: absolute;
	z-index:-1;
	top: 0px;
	background-color: #0000FF;
}
.nav_animate{
animation:moveHeight  1s,.5s ease-in-out ;
-webkit-animation:moveHeight  1s,.5s ease-in-out ;
transition: all 1s;
-webkit-transition: all 1s;
}

@keyframes moveHeight {
0{
	height: 0px;
}
	50% {
	height: 50px;
	}
	100%{
		height: 0px;
	}