div.bar { background-color: #050885;
	border-bottom: solid 5px black;
	padding: 0.3vw;
	position: fixed;
	font-size: 1vw;
	width: 50vw;
	display:block;
	left: 0;
	right: 0;
	margin: auto;
	text-align:center;
	 z-index: 100;
}

a.r { color: white;
	padding-left: 2vw;
	padding-right: 2vw;
	display:inline-block;
	background-color: black;
}
    a.r:link{text-decoration:none}
    a.r:visited{text-decoration: none;}
    a.r:hover{
    background: blue;
    color: white;
    animation: gradient 2s ease-in-out infinite;
    background-size: 400% 100%;
}