*,
*:after,
*::before {
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
}

body {
	font-family: 'Raleway','微軟正黑體', sans-serif;
}



nav{
	margin: 0 auto;
	text-align: center;
	background-color:#8cc63f;
	height:60px;
}

nav a {
	position: relative;
	display: inline-block;
	outline: none;
	color: #fff;
	text-decoration: none;
	text-transform: uppercase;
	font-weight: 400;
	text-shadow: 0 0 1px rgba(255,255,255,0.3);
	font-size: 1.2em;
	text-align:center;
}

nav a:hover,
nav a:focus {
	outline: none;
	font-weight: bold;
}

/* Effect 20: 3D side */
.cl-effect-20 a {
	line-height: 2em;
	-webkit-perspective: 800px;
	-moz-perspective: 800px;
	perspective: 800px;
	padding-top: 10px;
}

.cl-effect-20 a span {
	position: relative;
	display: inline-block;
	padding: 3px 15px 0;
	background: #8cc63f;
	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: #fff;
	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: #2f4351;
}

.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);
}