*
{
	margin:0;
	padding:0;
	box-sizing:border-box;
	font-family: 'Arial', sans-serif;
}
.top_text
{
	color:white;
	position:absolute;
	background:crimson;
	left:30%;
	height:30px;
	padding:0 44px;
	border-radius:5px;
	animation-name: animate  ;
	animation-duration: 1s;
	animation-iteration-count: infinite;
	
}
@keyframes animate {
   0% {background-color: red;}
  25%  {background-color: orange;}
  50%  {background-color: blue;}
  100% {background-color: green;}
}
.nav_text::before
{
	position:absolute;
	content:"";
	border-bottom:2px solid orange;
	width:0;
	margin:auto;
	margin-top:35px;
}
.nav_text:hover::before
{
	width:100%;
	transition:all 1s;
}
.library_img:hover
{
	opacity:0.5;
	transform:scale(1.1);
	transition: all 1s;
	border:2px solid orange;
}


	
	
	.lab_img:hover
	{
		opacity:0.5;
	transform:scale(1.1);
	transition: all 1s;
	border:2px solid orange;
	background:crimson;
	color:white;
	border-radius:25%;
	}
	.vission:hover
	{
		opacity:0.5;
	transform:scale(1.1);
	transition: all 1s;
	border:2px solid orange;
	background:crimson;
	color:white;
	border-radius:10%;
	 box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.2), 0 6px 20px 0 rgba(0, 0, 0, 0.19);
	}
	@media screen and(max-width:600)
	{
		.top_text
		{
			flex-direction:column;
		}
	}