animated nav bar

by padma rubhan

HTML

<section class="color-1">
				<nav class="cl-effect-20" id="cl-effect-20">
					<a href="#cl-effect-20"><span data-hover="Beleaguer">Beleaguer</span></a>
					<a href="#cl-effect-20"><span data-hover="Scintilla">Scintilla</span></a>
					<a href="#cl-effect-20"><span data-hover="Chatoyant">Chatoyant</span></a>
					<a href="#cl-effect-20"><span data-hover="Palimpsest">Palimpsest</span></a>
					<a href="#cl-effect-20"><span data-hover="Languor">Languor</span></a>
				</nav>
			</section>

CSS

/* Effect 20: 3D side */
.cl-effect-20 a {
	line-height: 2em;
	-webkit-perspective: 800px;
	-moz-perspective: 800px;
	perspective: 800px;
}

.cl-effect-20 a span {
	position: relative;
	display: inline-block;
	padding: 3px 15px 0;
	background: #1a8cff;
  color:#fff;
	box-shadow: inset 0 3px #2f4351;
	-webkit-transition: background 0.6s;
	-moz-transition: background 0.6s;
	transition: background 0.6s;
	-webkit-transform-origin: 50% 0;
	-moz-transform-origin: 50% 0;
	transform-origin: 50% 0;
	-webkit-transform-style: preserve-3d;
	-moz-transform-style: preserve-3d;
	transform-style: preserve-3d;
	-webkit-transform-origin: 0% 50%;
	-moz-transform-origin: 0% 50%;
	transform-origin: 0% 50%;
}

.cl-effect-20 a span::before {
	position: absolute;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	background: yellow;
	color: #2f4351;
	content: attr(data-hover);
	-webkit-transform: rotateX(270deg);
	-moz-transform: rotateX(270deg);
	transform: rotateX(270deg);
	-webkit-transition: -webkit-transform 0.6s;
	-moz-transition: -moz-transform 0.6s;
	transition: transform 0.6s;
	-webkit-transform-origin: 0 0;
	-moz-transform-origin: 0 0;
	transform-origin: 0 0;
	pointer-events: none;
}

.cl-effect-20 a:hover span,
.cl-effect-20 a:focus span {
	background: #000;
}
.color-1 {
  margin-top: 50px;
	background: #435a6b;
}
.cl-effect-20 a:hover span::before,
.cl-effect-20 a:focus span::before {
	-webkit-transform: rotateX(10deg);	
	-moz-transform: rotateX(10deg);
	transform: rotateX(10deg);
}